I was in add/remove programs to clear out my old Palm software when I noticed entries for both DM 4.2 and DM 4.5. I'm tempted to remove the 4.2 entry, but I'm leary of they f@cking up DM 4.5. Guess I could remove 4.5, then 4.2, then reinstall 4.5.
It should be safe to remove Desktop Manager 4.2. It's generally recommended to delete the previous version before installing a newer one, but I installed 4.5 over 4.3 without any problem.