I've had an Apple IIe (non-platinum 1984 edition with beige keyboard) that's worked great since I obtained it several months ago. I don't turn it on very often but I just bought an excellent condition keyboard to replace the one that was in it since it had a couple of broken key studs. After replacing the keyboard and turning it on, the keys seem to stick...actually ALL of the keys stick. Hooking up the OLD broken keyboard that I know works gives the same result (keys sticking). Running a self-test (Ctrl+Open Apple+Closed Apple+Reset) gives a system ok. I've also reseated the keyboard controller IC but nothing has made a difference. I've even taken out all of the expansion cards (e.g. 64k ram card, disk controller card) out but nothing made a difference. Any ideas as to what could be causing this out of the blue? Apple II forums are hard to find so I'm hoping there are still folks around on this site who are still up for vintage troubleshooting.