I have the transition bug going from BG1 to BG2, so I uninstalled BGT 1.05b and reinstalled the new 1.06 version without error.
It seems to have taken effect as Belt's dialog has changed and because I am no longer stuck after the forest scene where the thieves ask Mae'Var where to take the party.
The problem is that it still fails to transition. After the aforementioned scene, the Alaundo quote is displayed, then the Irenicus dungeon video is played, and then... Blank screen. All I can do is ALT+F4 to close the game, even though Boo will miss me.
How can I transition to BG2?
Ah, bugger. I screwed up. I've updated the archive to fix the problem. Check the v1.06 release thread (note the date on the package before downloading).
The revised version works perfectly. You're the man! (or woman). Thanks for all your hard work and mature attitude.