226494 - browser display area bounces up and down continuously

Status: RESOLVED DUPLICATE of bug 219643

(Core Graveyard :: GFX: Win32, defect)

Description

[Nathan Horne]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5) Gecko/20031007
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5) Gecko/20031007

When loading up a page, the display area of the browser (area below the Personal
Toolbar and above the Status Bar, including the scroll bar) jumps up and down
approximately 1 pixel, consuming lots of CPU and producing an extremely
irritating jitter effect.

The problem appears to occur 100% of the time when launching the first browser
instance.  It also occurs when resizing, navigating a link, and reloading, but
not as consistently.

Collapsing the Personal Toolbar resolves the problem 100% of the time. 
Reloading the page sometimes resolves the problem.

Reproducible: Sometimes

Steps to Reproduce:
(see details)

Actual Results:  
Page jitter.  After prolonged exposure, strong urge to resolve problem by
clawing out eyeballs.

Expected Results:  
No page jitter.

Comment 1

[Nathan Horne]

The jitter doesn't seem to be a page refresh - I dropped my network connection
with Moz up and didn't get a 404.

Comment 2

[Nathan Horne]

Appears to be fixed in 1.6a (build 2003110115)

Comment 3

[Oleg Sidletskiy]

*** This bug has been marked as a duplicate of 219643 ***