Big mistake - I installed the scanner before the HP 8100i. Dell didn't sell me the 8100i. Finally sent back the Dell and got another Dell. Installed the 8100 first and the HP Photosmart scanner last. Result, works great now.
Scanner is excellent now.
Hope this helps someone else. Very good documentation and packaging. After you screw in the drive and stick the cables in, its only a matter of dropping in the CD under Windows. I have got it to burn fine under Redhat 5.2 with KDE 1.1 burnit. I can run this over a coax network and not get under-runs.