Mr_Blonde

I have the exact same problem as described by the thread starter kevlar as his experience during play. It's been like this a good few months. Nothing had changed with my pc when it started happening. And without being able to find anything online about the problem I have been putting up with it. I thought I might have stumbled upon the answer with this thread but I cannot see a solution. Kevlar did you manage to resolve this issue? Recently I upgraded my graphics card and to my dismae the problem is still happening. Only difference now is the intensity of the freezeups are much shorter and the bodies falling to the ground descend much more quickly. This is happening to all the steam games I play online, CS source, DOD Source, Battlegrounds Source.
My specs should be good enough to not encounter such a problem, here they are.
Windows XP Home SP2
Pentium 4 540 3.2 Ghz (socket 775 & i925x chipset)
Motherboard is by Dell 0K3464
2 GB DDR2 PC4200 533 mhz Ram (think its Kingston)
ATI Radeon 2900XT 1 GB DDR4 (previously Radeon X800XT 512MB DDR3)
120 GB Diamond Maxtor SATA/133 HD
Sound Blaster Audigy 2

Please help me! I've been a hardcore player of the Half Life series and a dedicated online gamer of it and its Mods since the original back in 98. But I've got to the stage where I'm ready to part company with valve and online games, when I really don't want to have to make that choice.