Happened to me with access..first reboot and see if that fixes it...
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So yeah was trying to run the ROM toolbox, everytime the screen locked it would lose superuser permissions and stop restoring, unlock the screen and it would resume, then after a while it would just crash. No big deal, wasnt sure it would work anyway, its never played nice with CM7 anyway. What it didnt restore didnt have any data
So after a reboot and installing titanium it did ask for superuser and I could restore from that again.
Batterys pretty low but Im sure that has more to do with all the backing up, restoreing and flashing Ive been doing and not as much with the OS so well see.