582136 - Rendering issue & Strange 'blue line' when using Windows 7 'snap' feature in Firefox 4B1

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Kyle Mulholland]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:2.0b1) Gecko/20100630 Firefox/4.0b1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:2.0b1) Gecko/20100630 Firefox/4.0b1

While attempting to view a web-page in Firefox in minimized form and also when 'snapped' to either side of the screen, the current web-page becomes somewhat distorted, with objects within the page being thrown out of alignment. Most strikingly, a turquoise blue line stretching vertically down the page and Firefox window becomes apparent, almost like a graphical artifact. Additionally, the 'tabs' area of the Firefox window turns completely black. 

However, this issue is rectified once the browser is placed back into full-screen mode.

While being of a cosmetic fashion, this issue is rather off-putting in a multitasking environment.

Reproducible: Always

Steps to Reproduce:
1.Load up any web-page.
2. Minimize Firefox, snap the window to either edge of the screen.
3.Issue will become apparent, self-rectifies when Firefox is enlarged to full-screen.
Actual Results:  
Issue self-rectifies when Firefox is enlarged.

Expected Results:  
Issue should not occur during 'snap' nor minimization.

Default Firefox 4 - Beta 1 theme.
Addons: Ad-block Plus

DxDiag can be found here: http://www.pastebin.org/421185

Comment 1

[Tyler Downer [He/Him]]

Reporter, are you still seeing this issue with Firefox 4.0.1 or later in safe mode or a fresh profile? If not, please close. These links can help you in your testing.
http://support.mozilla.com/kb/Safe+Mode
http://support.mozilla.com/kb/Managing+profiles

Comment 2

[Tyler Downer [He/Him]]

No reply, INCOMPLETE. Please retest with Firefox 4 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). Also, ensure you have the most up to date graphics drivers, operating system updates, and plugin versions (flash, java, etc). If you continue to see this issue with the newest Firefox and a new profile, then please comment on this bug.