|... remove the main battery and unhook it from the mains and then [press] and hold in the power button for a few seconds.|
... then refit the battery and plug-in the mains adapter and turn it on, does it power up now?
... if not either its stuck in a hibernation malfunction or click here to view another cause.
... if its stuck in a "hibernation" fault bootup with a win98 cd/floppy then type:
FDISK /MBR [press enter]
... (also click onto the purple) hope this helps!
... Posting is provided "AS IS" with no warranties