I have the same problem here. At first I thought I'd caused it myself, but having seen it elsewhere, I think something's broken in either a CSSU(-Thumb), kernel or backupmenu update. As hinted here, I rolled back bootmenu to 1.11 (current version 1.12), but no difference.

BTW, Acurus_, I assume you mean "currently" in your signature, not "actually". The latter is usually taken to mean "really" where I live (even though it means "currently" whwre I come from ).