I just spent about an hour and a half searching google to no avail, when I decided I should use the blog instead! I was feeling the urge to play some Underworld as a mage for the first time, but DosBox fails. The graphics on the "looking glass productions" screen are totally garbled, but the "Ultima Underworld" with the flaming letters looks fine. The next screen, with journey onward etc. does not appear at all. The sound works great and I can even select the intro and hear (but not see) my dream and subsequent visit to Britannia.
I haven't played the game or, as I recall, changed any settings since my blogging back in 2007. It's very strange that it spontaneously quit working. Any suggestions out there? I also brought the game to a different PC (I wanted to play UW on my 28 inch monitor just to enjoy the absurdity size mismatch) and had the same problem with v0.73 of DosBox as I had with 0.72 on the laptop. Perhaps the game itself is corrupted. Too bad the CD is a few hundred miles away at present!
Kind of sad I might not be able to play the game again. For what it's worth, though, UW2 works fine.