I've been using ATItool v. 0.25 for OC'ing my x800 GTO card but am experiencing problems with the artifact detector. I observe what I would call massive artifacts (yellow dots/lines) in the 3D window but ATI tools does not detect these at any point. I've linked to a screen dump of the program yo show the looks of it --> http://www.student.dtu.dk/~s001566/ATItool.jpg I'm using the 'new' detection method. Is this artifacts caused by overheating (I would be suprised since my temp program says the GPU is only 52 degrees C) - or is this a software bug? What can I do to prevent this?