You may find that the BIOS does not support hibernation:
Try updating the BIOS:
Here's the link:
http://h18007.www1.hp.com/support/fi...oad/22205.html
Sorry the link wrapped - I\'ll try again:
http://h18007.www1.hp.com/support
/files/hpcpqnk/us/download/22205.html
make sure it\'s all on one line