My son brought his baseball coaches laptop home and asked me to look at what was wrong with it. It is fairly old with Windows Vista loaded on it. When I power it up it comes up with a message "JPBRN is compressed" and says to press F2 to reboot. I did an internet and Acer website search for the error message with no luck. Can anyone here shed any light on the error message and or a fix for the issue? Thanks in advance for any help.......