I did the "replace the files" bit, but for some reason it boots into Windows Classic until I manually change it. The theme is replaced properly other than that. WINNT.SIF is also set to point explicitly to Luna (the replaced Luna, anyway) as the default theme, but that isn't helping either. I used the Tablet PC Royale/Energyblue theme, modpe the files, all that. Reverted to my CD source and replaced ONLY the four files for the theme too, same problem. Unless y'all know better, I'm just going to add something to my reg patch file to set it. BTW for login screen and boot screen there's a guide on the unattended.msfn.org page, I believe under Advanced > Customization (the boot screen one didn't work for me but I didn't spend much time troubleshooting it, so I probably just forgot a step).