You only need a stable 60 fps to see no lag at all, so it's not your graphics that's the problem, maybe your rates? What are they? And what line do you have?

Ok. First off. All those symptoms you have I had a while ago(About the crouching). These were my issues

For your first symptom: Ppl running around crouching.

This could be a number of things.

1) Your ISP routing is messed up. To find out if this is the issue go to cmd prompt and type

C:\>tracert -h 30 196.38.180.10  <----The ip address is the ip address of the server from IS you want to connect to in CSS

You should get around 10 results. If there are high pings/*'s then this is cabling/ISP routing/your network card etc etc issues.

Alternatively and this is how i find out there was an issue you can go to http://pingtest.net/ and this will do a test on your line. You should get 0 packet loss and very low jitter.

With regards to fps I'm not entirely sure what my FPS was when I was having this issue.

But what I must ask is does this happen with any other game?

When I had this issue it happened in other games, but only really noticed it CSS for example in  BF3 i kinda just got teleported a couple steps back every now and again.

With regards to your graphic issues I think the same question applies. Does this happen with any other game?

If it happens with every game then it must be  a hardware issue.

A while ago I was testing other ppls configs. I have a radeon 5850 me thinks. I normally sit on 300fps and when i tested someones config it went down to 100fps no matter what i did to the graphics settings. I had to set everything to default and then load my old config again. Sorry i cant be more help.

And have you tried to verify the integrity of the game via the css properties in steam?

Liability have u goten any new hardware such as a new or possibly bigger screen? When last did u format your computer? and check inside ur box to see if there are huge amounts of dust build up.

When my game starts to run slower its generally coz my pc is getting to hot, or because i havent formatted in ages.

U will find that most of the time its not ur hardware at all but rather ur windows software thats the issue.

Could also be ur harddrive if its skipping every now and then. try copying things from one place to another on ur harddrive and if it takes longer than its supposed to it could point out that ur harddrive is faulty or slowing down.

the screen splitting is impossible to remove unless u go and buy a 120hertz LCD which is expensive. U cant play css properly with v-sync on its just not an option, trust me.

Hope this helps.

Sitch

Liaballz.... try replacing your graphics card with ur older one or that of a mates. Maybe the best thing in this situation is trial and error.

Maybe the updates to your gfx card is causing a conflict with some configurations within css. Last time i ran an ATI gfx card i had thi sexact problem in BF2 and BC2. As soon as an update came out, screen tearing and crashes.

Its stange cause the symptoms you list are symptoms caused both by network issues and gfx card issues.

CSS is a sensitive game, you might not notice differences in other games, but in css you do. So try what macwazzy said.

I had the same player crouching issue when my line was giving me trouble, and constant funny lag spikes every few seconds. When this happens I just play COD and BF3 and noticed NO difference. Only in css did i have the problem.

Honestly i feel like this is both a network and hardware conflict issue. Have you tried reverting back to older drivers for your gfx card?

Hope you come right bra, but honestly if you are able to, try another gfx card, and if you can get access to another internet source then try that as well.

If the problem still persists, maybe the best thing will be to backup and format...

5770 is poo, you need an upgrade anyway. 

and i know u probably a ATI fan but look more towards nvidea... their gfx cards are more well engineered and they have not only stronger cpu's but their drivers are far better than the drivers for ATI.

Most games these days are built using nvidea gfx engines so to go nvidea would be the better choice. remember this is an opinion... dont want these ATI lovers trolling me :P hahaha

Sitch

Lia,

The 560ti is a solid card and can be overclocked quite easily and safely. It is DEFINATELY bang for the buck.

When BF3 came out i bought a 560ti, and I ran the game on ultra, (post anti-aliasing off) without an overclock. I am so impressed with this  middle range card that I bought another and am running sli. I rate this setup will last me quite a long time before needing an upgrade.

mwas!

ye Xeqtr is right, i have the ENUGTX 460 overclock edition which is in direct competition with the 560Ti although the 560 can be overclocked more so than mine can coz its already been overclocked by the manufacturer. 

I run all new games mind u not all on full gfx coz my 24'' screen makes the card work alot, but dota2 C.O.D and battlefield all run leka so getting the 560Ti would be ur best option :)

Enjoy shopping and dont let store sales ppl convince u to go any other route than the route u have chosen. They are snakes and just want to get rid of the equipment their under pressure to sell.

Sitch

If you want to play BF3, ATI is the way to go. Nvidia cards seem to struggle more than ATI cards. But I'm no fanboy, I bought my first ATI card a few weeks ago only because I got it at such a good price (The Gigabyte 6970 2GB OC edition)

6970 is R3800 and puts out 80 fps on average on new battlefield.

GTX570 is R3300 and puts out 75 fps on average on new battlefield.

6970 2gb ram < GTX570 1.3gb ram

ATI drivers < Nvidea drivers.

Is R500 extra really worth 5 fps ?

I said I got a good deal, I bought mine a month old for 2600. I get 100 fps medium settings bf3. So yes it's really worth it. 

Lia go for the 7850 bro.....

Putting aside the fact I will always be a nvidia guy...

It is obvious that the 7850 has an edge over the 560ti. With the 7850 running cooler and drawing less power only means that it is probably underclocked to what it is capable and will therefore allow nice gains with a less aggressive overclock.

The extra 1GB RAM will definately aid your performance with new age games like BF3 that require a good 1.5GB RAM for maximum performance out of your card.

The nvidea draws 11% less power and is far more quite btw. But by all means go for radeon, all im saying is its pointless having a brute force card if the drivers are so bad they dont utilize the cards potential properly... Its like have a fast car but a novice driver behind the wheel.

Either way im sure u will be happy with whatever u go for, both solid cards. Enjoy :)

Sitch

Oh ye sorry that was another card :P ye the ATI uses less power but doubt its quiter. Coz they clock there cores at higher speeds to achieve a increase in benchmark scores, the GFX card is almost garenteed to have more fans running fast so it should be louder.

But like i say the drivers are what wins it for me :) 

Ati doesnt render any doors or walls in css...

Uhh i mean yes its much quieter *whistle* *whistle*...*runs*

Im not sure if this post has been answerd but Id take the card out and put in another machine with css installed. This will tell you if its the card, but im thinking its rather unlikely if you have done everything you say you have. Make sure you installed the latest driver, not just the CCC, this has been an issue once before for someoe i know. Also, you might want to try uninstalling css, and deleting any files left in the steam folder and cleaning your registry of any files used by css. This honestly sounds like a problem with the game the more i think about it.