GE:S launches fine but as soon as the level loads I can see a brief bit of action (like 2 seconds) behind that first page that shows up telling you what rules are set etc. I can see half of the chat box to the left. After the two seconds, the sound does the typical repetition that happens when Hl2.exe stops responding and the game closes with the "Hl2.exe" has stopped responding window.
Another interesting thing, is if I try to skip the opening video with "esc" it works fine, but if I left click it stops responding.
It's an HP Pavillion laptop, integrated intel grapics (that don't have a problem with games like TF2, CSS, DOD, Gmod, HL2), Vista 64-bit.