Game crashes when expanding after minimizing.

So I minimize my game, to go check out a link a Youtube video a friend posts on Xfire, I finish watching the video and maximize the game window again.

I get slapped across the face with the following error and loose 2 - 4 hours work worth of building:
http://img52.imageshack.us/img52/5997/gerror.png

It happens EVERY single time I maximize Garry’s Mod after minimizing it. It’s driving me insane basically.

System Specs
Processor: Intel® Core™ i7 CPU 920 @ 2.67GHz (8 CPUs)
Memory: 2046MB RAM
Hard Drive: 150 GB Primary HD, 1 TB Secondary HD
Video Card: NVIDIA GeForce 9800 GT
Monitor: Philips 220CW (22inch WIDE LCD MONITOR 220CW8)
Sound Card: Realtek HD Audio output
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3

So is this a common problem for everyone or is it just me?

I was looking for a bug report section of the forum for Garry’s Mod but couldn’t find any so this is where I went.

This doesn’t exactly fix the problem, but Xfire has an ingame browser, which you should be able to use for youtube videos, albeit any other website

I know it does, but I didn’t specifically say I always minimize just to use a web browser either.
I just used it as an example.

Gmod is not meant to be minimized so often. I have the same problem but I know the fix would just be to play in full screen mod and not ever minimize. That’s just the way it is.

I always play in fullscreen, and I meant minimizing as in, “hiding” the entire window, not rezising it.
But thanks anyways, I’m guessing its a common problem then.