iBook/YDL - flickering screen after startx

From: Jarle Anfinsen (jarlea_at_idi.ntnu.no)
Date: 09/30/03 

Date: Tue, 30 Sep 2003 13:57:08 +0200

Hi, have just got my hands on a new iBook (800MHz G3, Mobilty Radeon
7500). Installing YDL 3.0 went just fine, and the system boots without
errors (have set it ut so that it boots to the command line - not X).
But when I run "startx", some strange flickering patterns (blue lines on a
black background) appear on my screen. This lasts for a few seconds. After
that, X loads normally and I have my windowmanager up and running without
problems.

I was just wondering if this flickering is normal? Anyone else with
similar experiences? Is there something I can do to get rid of it? If
there is an FAQ I should have read about the subject I would appreciate if
someone could point me to it.