ibm think pad won't turn off - keeps restarting after shutting down.

[alidabiri]

hi folks,
i might have seen this error message before, but i can't read the whole thing. it was something to the effect of "not less than or equal". this is when i shut down and the blue screen appears for 1 or 2 seconds then the pc restarts. any suggestions? it's draining my battery.
thanks.