KF won't start

[mister_tubs]

XP SP3 32-bit
AMD Athlon 64 X2 Dual Core 4000+
2 GB RAM
ATI Radeon HD 4800

I've owned this game for a while, played it before on this computer and it ran perfectly fine. So I decide to come back to it for a little X-mas special and it won't start. After the steam dialogue "preparing to launch KF" disappears, a mini splash for killing floor pops up and stays there. and stays there. and stays there. At least five minutes everytime before i end the process to get out of it. The longest I waited for it was 45 minutes. That's not cool.

I tried virtually all the 'fixes' in the stickied threads above but nothing has worked. I've tried turning off prechaching, changing cache size, other ini tweaks, reinstalling, reinstalling from a different download server, defragging, defragging game cache, verifying game cache, reinstalling my graphics drivers...

Am I missing something? This was perfectly payable before...what gives???

 

[mister_tubs]

...


*wind rustling*


...

 

[Spoony]

Virus? Not enough memory? Kf don't like your pc?

 

[mister_tubs]

I'm pretty sure I don't have any virus, I used to work at an IT helpdesk to remove viruses among other things. KF's minimum requirement is 1GB RAM, I have 2. Like I said, it has run before on this same computer but I guess you're right on the last one. So if someone could point out the troubleshooting steps to solve "KF doesn't like my pc" that would be great.

 

[mister_tubs]

Silly me I thought this was the support forum. If you would be so kind as to direct me to someone who might actually help solve my issue, I would be very grateful.