I've used a wonderful Keytronic keyboard for 10 years, using it with every generation of computer I purchase. Yesterday, the space bar quit working along with the delete keys and the 3, 6, and 9 on the numeric keypad. So, today, I purchased a brand new keytronic keyboard to replace it but whoops, the same problem remains. I switched to this piece of crap microsoft keyboard that does not appear to have any key problems but when I switch back to either of the keytronic keyboards, the same problems pop up. I'm stumped. I deleted the keyboard driver and rebooted but that didn't affect anything. Any ideas as to what to do would be appreciated. Thx -- Jim H.