I recently bought the Abyssea edition game on Steam; it downloaded fine, and the playOnline viewer/launcher runs fine. When I start the game, however, my screen goes black for a second, like it's going to start, but then it just closes. No error message or anything. Has anyone else had this problem?

**I downloaded and played the previous Ultimate edition through Steam maybe 6 months ago (on the same PC), and this wasn't an issue then.

Any help would be great.