yes, and on the second machine it was the same problem however when i made a boot disk of backtrack three it work untill after the logg in screen were it said it could not find Startx could be a...

i'm burning at x4 in nero ( i first tried power Iso but that failed)
i've tried buring both cdr and cdrw then i ran out of cdr so now i'm buring cdrw
and yes i've tried two different types of cd's...

i tried to make a live cd i checked the md5 hash from the iso file it matched, then i used nero to burn onto a cd which i burned the iso image yet when i tried to boot it it says image checksume...