i recently did a system restore on a older compaq machine. then ran a win98 upgrade for a woman. the machine has a dvd drive in it. the woman just called and is bringing the computer back in. she says the dvd will read the win98 upgrade cd, but not any other. she says shes tried cds, music cds and dvds but nothing works. just that win98 cd. she is really p*ssed. i've never seen anything like this. i haven't looked at the machine yet, she is bringing it in now. what can i try? this is really wierd.