DA:O DRM error for Dragon Age

I just fired up Dragon Age for the first time since last month I installed it, but now I get a DVD-authentification error when it starts. No matter what, it can't validate my DVD. Seems strange for a game to just suddenly stop working.

Have any of you been having problem with the DRM for this game?

I had that happen, I just had to run the game manually from the .exe sometimes.

Skip the launcher you mean?

Yeah. I have to add more characters because "Yes." is too short.