on my HP laptop about once a month. also if I leave the machine unattended for 10 mins it freezes about 2 or 3 times a month. I have to remember if I'm leaving the mach to close the lid.
To exit the black screen I must disconnect the power, then restart.
could this be an HP problem?
Download to correct the problem?:
http://www.prevx.com/blog/140/Black-Scr ... nd-XP.html