well, this is an old thread. But since i had similar problem just recently maybe it will help someone else.
the first place to start is to use bootcode base
. so before you hit enter on which desktop manager to boot with, hit TAB. then just add base
to the end of that line and hit enter. it will boot with no defaults and no extensions and may give a desktop. it's not the final solution but it's the first place to start so you can navigate around easier and see what's going on.
another problem might be if you had played around previously with TC and have a /tce file on another drive. TC will boot from the drive with the first /tce that it finds. I had an old version of TC booting using /hda1 which, when trying to run a new version only would give a command line since it was still trying to use that old version on /hda1. i just set bootcode tce=sda1 and then set that boot to backup to /sda1. that solved it. too late probably to help OP, but maybe someone else.