GMod crashes when loading a map.

My GMod crashes when it loads gm_construct. I was able to play a fev seconds on gm_flatgrass, but then it gave me same error.

My specs are a bit under GMOD requirements :
1.25GHz AMD Athlon CPU
64MB nVidia MX440
OS is Windows XP
Drivers are up to date.

I am running on -dxlevel 81, Tried with -dxlevel 60, same error.

Yeah… I really think the only option here would be to upgrade. Low specs are probably causing your problem.

Lmao, I actually got a better PC but it hates steam now.

Tried reinstalling Steam? (on the better PC)