I am with you, I am having the same problem...
Since saturday I wanted to play after 2 months away from ultima psobb and unfortunately update started but crashed at 65%, after that my game didn't open anymore, tryed reinstall my ultimapsobb_3.0.exe and after downloaded the latest patch 2.8 and made everything right and now, I am unable to open, always says server offline error 903.
Downloaded yesterday the ultimapsobb_3.3.exe from here and still the same trouble. you can see.
> after recheck >->
After inserting my accound and password and click In Start Game, strange thing I noticed, my game version drop from 1.0 to 0.8 as you can see on the image below Is this normal???
this is what show after 30 seconds of black screen.:
If someone know how to fix it, tell us please......