SafeStrap 3.05 dont restore nandroid in DROID 3

[AC Question]

SafeStrap 3.05 dont restore nandroid in DROID 3
I made a backup of the Stock ROM some months ago....
I restore it into ROM SLOT-1 today... to try something without compromising the normal Stock ROM instalation.... but the phone dont boot from ROM Slot-1...
it get stuck in a black screen after the safestrap normal screen..
it heat up a lot.. and does not respond at all... i have to take of the battery to reboot the phone... and activate the notmal Stock ROM back...
i dont get any error messege during the restore... or in the log...
apparently the nandroid gets restored ok into the ROM SLOT-1...
but the ROM SLOT-1 dont boot...
ideas??