Stabbing in the dark here, but is there any chance that you might have a sick battery?
If one cell in the battery is down, the computer thinks the battery is low (which it is) but the remaining good cells carry that lower voltage longer than the program anticipates. It's just a thought.
I use a remastered kde3 (minime 2009) on a SD with my 1000h with klaptop and eeepccontrol rpms and it's always worked fine, so I don't know much about how the new releases work on it. Yet...
