XP SP1a ATI 8 C: 12Gig,/D: 40Gig E: 80Gig F: 120Gig on Promise ATA133 PCI card Installed and gave ATI SZ 50Gig on the F: drive and scheduled once daily at shutdown, incrementals of the C: drive, 9.5Gigs. A few weeks later I noticed that it was using 40Gig with only scheduling Incrementals at shutdown once daily, then suddenly, scheduled incrementals stopped running, tried to reschedule but incrementals would not run and reported that if Admin password was not right, would not back-up...I have never changed password. Tried making backups from the bootup using F11 and ran two, then, even without backing up started getting error reports that ATI wanted more disk space, so I gave it 10 more Gigs. It demanded even more so I decided to Uninstall and Reinstall starting over. Clicked to Uninstall and remove SZ and Uninstall hung (not responding) 10 times. Checked Forums, Uninstalled and successfully deleted SZ manually (Fat32) but could not get unallocated space to return to F: drive. Now, at each startup, get error "Acronis Loader fatal error: Boot Drive (partition) not found. Press <Enter> to try to boot your OS.... And it does boot XP because I have Restore Console installed. I noticed in ControlPanel/AdministrativeTools/ComputerManagement/DiskManagement that ATI is seeing the F: drive as the Primary Active?? Now there is no SZ, no ATI in StartUp, no ATI program files, ran System Mechanic 5 and no registry crumbs of ATI, but STILL, "Acronis Loader fatal error....." and search for Acronis Loader returns nothing. To resolve: 1. Complete Uninstallation to try to reinstall. 2. Get rid of Acronis Loader fatal error. 3. Get unallocated space (58Gigs) back into F: drive to make new SZ (with a Partition manager, I suppose). I have now learned that ATI wants/needs 3x+ of size of incremental backups in SZ, which is NOT apparent in Instructions, but why is it asking for more and more every time I tried to do an incremental back up? Thanks for any help.