Windows 7 64, HD 5870, i7, 8 GB ram. It's a laptop and I've heard of issues with updating the video drivers so I still have the default ones, never not worked for anything though (I run BFBC2 fine).
Oddly, I was able to play one beta game...the game launched, it ran fine. Any time I relaunched the beta since, I would not be able to join (the .exe would show under processes, then disappear). Googling told me others had the same problem, and there was no fix. I said fuck it, they'll get it for the actual game...and apparently not. Any insight?