camping happily

Just installed Win XP Pro and Eudora 6.0 in sponsored mode (for now).
When I start Eudora, it changes my screen resolution to a very grainy
texture. When I close Eudora, it tries to give me back my resolution
but my wallpaper picture is gone. Just a black screen with my icons
on it. I haven't had enough time to find any other problems. Anybody
have any ideas to fix this?

Buck