I had a great astronomy program called Skymap on my older computer with 98SE. I still have the download (anyone want it? ) but it won't install with XP because it apparently requires a file that is part of 98 but not part of XP. If anyone has a version of this program - or of Orion's TheSky - for XP, please let me know. I originally got it as a free program from download.com. Thank you!