From LQWiki

You know that ? Your flatscreen pops up a message "please wait" while it re-adjusts. SUSE 9.2 is the last SUSE version with that you can change that so the monitor is correctly adjusted from the beginning. Do:

yast2 -> hardware -> Graphic Card and Monitor -> Change -> Desktop -> Monitor -> Change Configuration -> Properties -> LCD -> 1280x1024 @ 70 Hz -> Expert -> XServerPool -> saving -> restarting X with CTRL_ALT_Backspace