I want to thank all of you who tried to help me out on this matter. You guys are great.
There must be an issue between Vista and Hoster.
No matter what hard drive I use, PCDJ, Virtual DJ, Atomix MP3, Music Match and Windows Media Player all build databases and play with no problem using the external drive. Only Hoster doesn't read the external drive properly.
I completely restored the laptop to factory condition and installed all the updates from Microsoft. Installed all my DJ programs. Went to reinstall the Hoster program. It asked me for registration number like it was installed for the first time.
All the DJ programs built the databases and ran fine. The Hoster had the same problem. It will only work if the KMA file are on the laptops hard drive. That would be fine but the hard drive is a 120 gig drive. The KMA files are 174 gigs.
My only option at this point is to return the laptop and try to find a new laptop with XP.
