Garry's mod Crashing without an error.

Basically i go into a single player game and i can’t move or jump without crashing, the game just closes without an error.

I’ve tried verifying, re installing, But i’ll probably end up doing a clean reinstall again.

I downloaded some workshop addons last night but gmod was working fine this morning with no problems.

Any help is appreciated.

[editline]26thjune2012[/editline]

It was a workshop addon problem. Fixed now