Gmod crashes when I join a second server

When I join another server after being on a server, or exit gmod after being on 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, and have sorted out my addons. I thought I had fixed this, but i haven’t

Try updating video drivers

I’ll be getting a new RAM and graphics card soon.Will that help?

You’ve made this thread 3 fucking times and you are still saying you’ll get the soon.

It will be this week or the next.