I spoke too soon. I'm crashing constantly on all games (BF2, Far Cry, and all Source Engine games) same as what was happening before. This is on a system reformatted 2 days ago with the 77.62 drivers installed.
I'm contacting Dell. I've had enough of this.
EDIT: It seems my Centrino/Intel wireless card is to blame.
EDIT 2: Nevermind, it crashed AGAIN on a wired connection.