My computer crashes almost twice a day after long use.  When it crashes a colored...like greenish cyan color displays on my screen, sometimes it is striped, sometimes not.  I am running 12.10 drivers and Windows 8 64-bit.  I have to do a hard reset and boot up again to get it working.  My video card is a MSI Lightning 7970 card on a DisplayPort with my NEC PA241W.  Other than this, it works well.  I have replaced the card once and have received the same problem.  Can anyone help?  When will the new whql drivers be out, and they address this problem.  Thank you!