I've finally got XP on my computer. It is wonderfully more stable than Win98se, but PSP5 may not be happy with the change. I haven't found anything that's impossible to do (yet?) with PSP & XP, but I have found that PSP makes its controls- and layers- and colors-palettes much larger than they used to be.
Here is a picture, with the controls palette taking up far more area than it needs along its right side and bottom. Notice how the toolbars and their text along left side and top of work area are perfectly normal in size. Anybody have a clue?