Windows 7 Bootcamp Shutdown - BSOD

Hey guys.
I have a 13" 2.4GHz mid-2010 MBP, with a legit version of Windows 7 installed. Sometimes I virtualize using VMWare, but usually I boot right into it when I use it to play games.

It's all been going well, until I would sometimes just shut the lid while I'm on Windows 7 bootcamp. When I open the lid, the computer is shut down, and I have the option of booting into OS X or Windows. If I choose Windows, it's as if it went to sleep (which should be happening as I'm closing the lid instead of shutting down).

Lately, when I shutdown Windows or I right-click Bootcamp and choose the option "Restart into Mac OS X", right after the "Logging Off" and "Shutting Down" screen, it goes into a BSOD with the line:

"irql_not_less_or_equal"

I'm not sure if my use of closing the lid has to do with this. It has been running fine and dandy for the longest time, and has only started recently. I've also been using Windows lately mainly for games, specifically StarCraft II. I've noticed it's running pretty hot too, and I'm wondering if this has anything to do with it. I've googled and searched this up somewhat, and apparently it's linked to corrupt memory? But this has never happened before..

So now I can't even shutdown Windows I'd have to close the lid and reopen.
Any help would be appreciated!

 

This was before the graphics update