Garry's Mod crashing to desktop - no error

My name is The Game (Steam ID: STEAM_0:1:19429386), and since 4-5 days ago, I have been unable to play Garry’s Mod.

The issue is:

 I will try to launch the client. The launch WILL launch, although when the initial blue screen (with the 'Loading...' in the bottom right corner) loads, the client will quit out, not continuing any further. I have a MDMP file for reference of this, and it seems that Awesomium is causing this issue. (According to one of my friends, as I cannot read MDMP files

My OS is Windows Vista. (unfortunately)

http://www.mediafire.com/download/261laq309lfpuvd/hl2_131024_crash_2013_10_26T11_6_48C0.mdmp

The link above links to my most recent MDMP file, where one of you can delve deeper into this.

Thanks for taking the time to look at this.