I have been playing CS:S for about 4 months perfectly but the other day after an update it all went wrong.
I can run for about 20 seconds, and then it freezes for about 5-7 seconds and then it repeats over and over and over. After it unfreezes it shows on the right that I picked up all guns / ammo I'm currently carrying, and all the corpses on the ground 'jump' back to standing and fall.
I tried reinstalling but no luck.
Please help, any suggestions??
Nick

Does it happen on every server or just one?

Yea, it does it on every server including day of defeat!
Nick

That sounds more like severe server lag.

I would try uninstalling your video card drivers and reintalling the latest version. I know there was a bad issue with Nvidia drivers after the last big update but it was supposedly fixed.