Source Problem

[Wal-Mart Security]

I just recently reformatted and I reinstalled all my games and such, and when I launched Garry's Mod I get about 2 frames in the main menu, everything takes forever to respond (For example: drag cursor over "options" or "exit" and it takes a while to go yellow or make that noise) I don't think its my machine because I just built my new one: 2GBs of RAM, 8800GTS video card, AMD Dual-Core 5200+ 2.6GHz CPU. Ive tried everything I could think of, Ive re-downloaded it (re-installed), updated video card drivers, defraged the game cache files, and got rid of all my mods. The same thing happens with Source SDK base - orange box, HL2: EP2, but oddly enough not Team Fortress 2, it runs just fine. I thought it was just the orange box source engine doing it to me until TF2 ran ok. (still could be a source problem) Anyone have any ideas? >_<

 

[-V-]

Same thing happened to me with TF2. I can't play it at all.

 

[Wal-Mart Security]

I found how to fix it yesterday actually:

http://forums.steampowered.com/forums/showthread.php?t=660774

This worked PERFECTLY for me. Give it a try.