11 Replies Latest reply: May 12, 2012 5:12 PM by rkaufmann87
Sylvek Level 1 Level 1 (0 points)

Hi all,


Since my upgrade to Lion (1.6.8 -> 1.7.3 and now 1.7.4), my iMac 2009 freeze several times a day.

the screen (wallpaper and windows) change of color ... i saw some artifacts and ... a moment, my mouse stops to move, my only way is to reboot my iMac.

before my upgrade, my iMac ran a week without a reboot .. :-!

iMac, Mac OS X (10.7.4), artifacts