If you still feel like playing Ultima 7 again with some higher res and pixel smoothing download Exult. It's a front end loader for U7 that makes it playable on Windows 95-Xp, OS 10.3, and some older releases for other OSes.
Yeah Exult is fucking awesome. I replayed the whole Ultima 7 sage with it about a year or so ago. Had one bug somewhere in Serpent Isle but managed to get past it. It had been a damn long time since I played Serpent Isle.