Havent done it myself, but it is listed in the compatible games list.
http://frankscorner.org/index.php?p=
Damn. OK, BG1 is. Since BG2s engine is an update of that one, it should work fine as well. Turn on the software blits in the config, cant remember where they are but dig around, and create those blank movie bifs and it should be fine. It might also be an idea to run it in software mode rather than 3d accelerated.