I have the problem of the Lords of Destruction expansion set not seeing the CD even though it is present. According to Blizzard, you need a patch (which I installed) and you have to run it as a user with full admin rights. There are a few other things to try when I get home, such as limiting the range of CD drive letters, etc., but I have a feeling they're not going to work.
The admin rights issue really irks me. Part of the reason I went to Win2K was to gain control over the computer, both from the point of view as a parent and as the 'techie' in the family.
Does anyone know a way around this? Perhaps editing the registry?