I'm not too sure I'd want to force the drive letters, Windows naturally wants its boot drive to C. I've installed XP on different drive letters such as F, but it seems whenever I do that, programs generate errors because they're looking for the C drive, etc.
As for forcing them, I have not a clue if you can or not.
hi, well basically, you know you can only ever have 4 primary partitions or 3 primary partitions and 1 extended partitions, i personally got aroud this problem by creating the partition before starting to install xp by using some partitioning software like Acronis (http://www.acronis.com) Partition Expert2003, but if you have broadband i would install the software, create a bootable cd then uninstall the software, as i tends to slow down my broadband connection, then with the cd in your cd drive, reboot your computer and enter the BIOS (when your computer does its POST test (first screen that appears, when you see "Press Del to enter setup" (usually Del))) then go into the Advanced section (usually press the down cursor once) then look for a setting like boot order the first boot device will probably be A: or floppy, either set it to boot from cd (or if you know which ide channel your cd is using select that) then press F10 (usually, to save and exit) then you computer will reboot, convert a partition to logical (NOT XP) and create a partition (FAT/FAT 32/NTFS) then set the primary partition you created Active then close to reboot, replace the bootable cd with the XP install cd, install XP then edit C:\boot.ini to set the correct OS to default and also change the time from 30 (seconds) to 0 (zero) then reboot go into the BIOS and change it back to boot from HDD1 not cd, i think that should sort it, in short install to a blank partition and edit C:/boot.ini