177296 - black pixel patterns on scrollbars, changing when mouse is moved on scrollbar

Status: VERIFIED DUPLICATE of bug 90657

(SeaMonkey :: General, defect)

Description

[dirk]

User-Agent:       Mozilla/4.78 [de] (WinNT; U)
Build Identifier: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.2b) Gecko/20021028

every time I move the mouse pointer over one scrollbar, push the left 
mouse-button and move the mouse, black pixel pattern appear and change while I 
move the mouse, even if the slider is not moved, but not if I click in the light 
grey area and move the mouse there.
(another thing which may not help: in one of our intranet pages (which I cannot 
forward to the public) there is an area of links and pictures on the top of the
page. If this area is scrolled ot of sight and then back, black rectangular 
blocky patterns appear in that area, only where text is, not on the 
pictures. This patterns change when the browser window it resized or the contens 
is scrolled (Only if I scroll veryvery slowly, these obscuring stuff does not 
show up - this is the only way to remove it)) The pixel-patterns in the 
scrollbar area disappear from time to time while the patterns change but 
reappear on the next move. 

Reproducible: Always

Steps to Reproduce:
1. start mozilla
2. if there is no scrollbar visible, reduce the window sice until there is one
3. move the mouse on the scrollbar

Actual Results:  
See details. in Addition: it seems that any change to the scrollbar area causes 
this effect, "any change" is any of: change in size, moving the slider, even 
moving the mouse (while holding the left button down) above the slider without 
moving the slider. But not moving the mouse in the light grey area or without 
holding a button down.

Expected Results:  
Well, er, :-) obvious huh: display a clean scroll bar and never obscure pages 
with black patterns :-)

OS: Windows NT, Service pack 6

The effect happened with mozilla 1.0 also. Yesterday i upgraded to the 
abovementioned version, and it was the same. To avoid any configuration 
influence, i just downloaded everything again, let it install into an completely  
empty dir and started it in offline-mode. then I clicked 'help'->'About Mozilla'  
reduced the window size until a scrollbar appeared - and the black pixel 
patterns were there.
Mozilla is the only program on my system which behaves like that - I used/use 
Netscape 4.7* (actual:4.78), Opera 6.01 and 6.05 and IE5 (if nothing else 
works).

It's not vital, but it is extremely annoying and keeps me from using mozilla as 
the default browser :-(

 - dirk

Comment 1

[Chris Lyon]

Dirk, what Video card do you have?

This could be a duplicate of bug 90657.

Comment 2

[Chris Lyon]

In an email from the reporter

> it's an   ATI 3D RAGE IIC (UMG GT-B)
> with an   ATI Internal DAC
> and       8 MB [RAM]


*** This bug has been marked as a duplicate of 90657 ***

Comment 3

[Wesha]

v.