Gmod crashes when I join a second server or exit game

When I join another server after being on a server, or exit gmod after beingon a server, I get a “hl2.exe has encountered a problem and has closed”, is there any way of fixing this, as I have already uninstalled and reinstalled the game via steam. My graphics card is an Ati Radeon Xpress 200 but I will be getting a new one soon. My gmod plays smoothly in game but I need this problem fixed. I have already increased my virtual memory, could someone help.

Try -dxlevel 81

I got this problem too, and if it doesn’t crash, gmod uses twice or trice as much memory as before and in single player it lags as if it was a huge pile of spammed explosives barrels blowing up.

It is already at that level. I even sent Garry himself a pm asking if there is a fix. He hasn’t even replied.

Sometimes it can be addons doing it. Try clearing out your addons folder.