Lowlife: Any way to smoothen the mouse? its not very easy to use, jumps all over the place :)
This is apparently a known issue with World of Xeen and there isn't really a fix. However, you can play the entire game with the keyboard, so it might be worth checking all the keyboard shortcuts. I found that to be a much easier way to play anyway.
You can read about the mouse behavior here:
http://www.gog.com/en/forum/might_and_magic_series/technical_troubles_invisible_mouse_in_might_and_magic_4Lowlife: Which game do you recommend starting with? World of Xeen?
For the DOS-based games (i.e. every game in the pack except MM6), most people recommend starting with MM3, but that's actually the only game in the pack I haven't played (yet). It uses an almost identical engine to World of Xeen, and then you can move on to World of Xeen and enjoy the improvements that were made. MM1 and MM2 are very old and harder to get into due to big technological limitations, but I found them to be surprisingly good. Worth going back for later, but MM3 or Xeen are better starting points.
MM6 is the most modern game in the pack (and doesn't use DOSBox), but it plays quite differently, with it's fully 3D world and switching between real-time and turn-based combat. It also involves LOTS of fighting with huge mobs of monsters. It's a good game but I liked Xeen better.
EDIT: I haven't played past MM6, but I hear good things about MM7 and MM8, which are similar to MM6 in style. Those are of course sold separately on GOG though.