I am using a Mac clone (Umax 900) with an graphic card from ixmicro formarly Twin Turbo. I am using a resolution of 1152x870 pixels with 100 MHz and 32768 colors. The problem is with Mozilla 1.2b (Mozilla/5.0 (Macintosh; U; PPC; en-US; rv:1.2b) Gecko/20021016) But I have also observed it ith 1.1. I am using Mozilla and open links in new tabs. This works okay but frequently it occurs that after having worked quite a while the screen resölution is changed by Mozilla. As a result the screen becomes gray and one can no longer see any thing. The mac is still working fine, since when I press buttons or click with the mouse one hears how it reacts. But since all pixels are gray the ony thing I can do is restart the mac. This does not happen every time, but quite frequently. I would guess in one of 5-8 cases I run into this problem. I have no definitive clue on what triggers this effect. I have the feeling it happens more often if the number of tabs gets larger (more than 8). Often this effect will occur when switching between teh tab windows, i.e. I click on a tab and the next thing I see is a gray screen.
*** This bug has been marked as a duplicate of 105946 ***