Lately I've been getting randomly alt-tab'd away from the game. I'll be playing and in the middle of a fight, listing something on GTN, or whatever, the game drops to the background. Sometimes it happens several times in just a few minutes. Other times, I might play for an hour uninterrupted.
The response to my ingame ticket wasn't very useful. The game isn't crashing. I stay logged in the whole time. It just randomly dumps me back to the desktop, which is a bit annoying if you're fighting or mid-sentence texting someone.