garrys mod crashing and other problems?

ok before i could just open gmod and join a server really quickly, now i have to wait 10 or so minuts just to get through the sending info part.

the other thing i find wierd, sometimes i hit q to open my spawn list n stuff, and my game crashes, other times, i select sbmp stuff or phx and my game will crash instantly (or other files).

what the heck is going on?

EDIT!!

im running vista on a 32 bit,

This is only garrysmod.org discussion.You can use this forums instead
http://www.facepunch.com/forumdisplay.php?f=16