44619 - preferences window covered

Status: VERIFIED DUPLICATE of bug 43434

(SeaMonkey :: Preferences, defect, P3)

Description

[Jeremy Higgs]

From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.0; Mac_PowerPC)
BuildID:    2000070511

When any page is loaded, and the preferences are opened, the right-hand 
side has a jumbled up copy of the loaded page, and the left-hand side 
has just white. Some 'chrome' in the middle is visible, though.

Reproducible: Always
Steps to Reproduce:
1. Go to ANY page.
2. Open Preferences.


Actual Results:  Same as above - preferences panes are covered by 
previously loaded page, even if that window is closed.

Expected Results:  Shown the preferences window with chrome, widgets, 
etc, and instead showed the previously loaded page.

Comment 1

[Henri Sivonen (:hsivonen)]

Have you, by any chance, previously changed the "gfx scrollbars" and "use view 
manager2" settings in the "Debug" preference pane?

Comment 2

[Jeremy Higgs]

Yes, I have seen them, but since I can't select anything in the left-hand 
pane, I can't fiddle around with them, if that's what is causing the problem

Comment 3

[Henri Sivonen (:hsivonen)]

If these lines
pref("nglayout.widget.gfxscrollbars", false);
pref("nglayout.view.useViewManager2", false);
are in pref.js in your profile folder, those setting have been disabled.

If you find those lines, cahnging them to
pref("nglayout.widget.gfxscrollbars", true);
pref("nglayout.view.useViewManager2", true);
is likely to help.

Comment 4

[Jeremy Higgs]

works - great... what do they do, and how come it affects the preferences??

Comment 5

[Henri Sivonen (:hsivonen)]

The "gfx scrollbar" setting chooses between native scrollbars and Mozilla's own 
scrollbars. The new tree widget is incompatible with the native scrollbars (bug 43434, 
see also bug 35996).

I am not quite sure what the difference between view manager 1 and 2 is, but using the 
old version breaks some screen updates.

*** This bug has been marked as a duplicate of 43434 ***

Comment 6

[sairuh (rarely reading bugmail)]

vrfy dup.