On my older computer I have XP Home and something has gone nuts. On some of my programs when I try to open it a box pops up Windows Installer telling me to put the disk in so it can install it. Of course the program is allready installed. When this happens I have to push the off button because the Windows Installer box won't go away and it won't let me reboot. Now it is even asking for the wrong program disk. Has anyone run into this ?