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Re: Notebooks do not display correctly in 1024X768

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  • Subject: [mg28254] Re: [mg28194] Notebooks do not display correctly in 1024X768
  • From: John Fultz <jfultz at>
  • Date: Fri, 6 Apr 2001 01:53:03 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

Is it possible that your video driver or video mode was changed two weeks 
ago?  Notably, a video driver could possibly be updated via the "Windows 
Update" process, so it may even be possible that it was updated without 
your full knowledge (the Windows Update page should tell you, but it 
wouldn't surprise me to learn that some people go through the update 
process just accepting the defaults without reading the details).

Since we are presuming a Mathematica-video driver conflict based on the 
info you provide, I would suggest two possibilities for resolution.

1) Try downloading the newest video driver from Toshiba's web site and see 
if it works.  If not, check to see if they have an older version of that 
same video driver available for download, and try that one.

2) In the Display control panel, go to the Settings panel and click 
"Advanced...".  In the resulting dialog, choose the Troubleshooting 
panel.  There should be a slider that allows you to adjust the level of 
hardware acceleration.  Try sliding this all the way to the left, click OK 
to get out of both dialogs, and restart Mathematica.  If this works, then 
go back to this dialog and slide the slider as far to the right as you can 
and still have Mathematica work.

Hope this helps.


John Fultz
jfultz at
User Interface Group
Wolfram Research, Inc.

At 03:13 AM 4/4/2001, B Carmichael wrote:

>I am using Mathematica 4.1 on a Toshiba Satellite 4060XCDT running
>Windows 2000 Pro with a Trident Video Accelerator 9525DVD video card.
>About two weeks ago, I started experiencing a problem that looks like to
>be caused by corrupted Front End preferences file and caches. More
>specifically, in the optimal display mode for my machine (1024X768, 16
>bits colors), notebooks and palettes are no longer display correctly,
>only the frames with a white background appear on the screen. Typed
>texts do not show up either in the input window. Moving the basic input
>palette avec the notebook window fills the window with multiple shadows
>of the palette. These stay on even if I refresh the screen.
>I contacted mathematica tech support that replayed:
>1) to make sure that multiple versions of mathematica fonts were not
>installed on my machine.
>2) to reinitialized the preferences file and caches following the
>procedure outlined in
>Neither solution solved the problem.
>However, looking for a solution I found that the problem seems to be
>linked to the color depth option of my computer display. For instance,
>the problem disappears if I reset the option to 800X600 (32 bits colors)
>and reappears with 800X600 (16 bits).  32 bits colors are not available
>in 1024X768 mode.
>I tried to uninstall/reinstall mathematica with no result.
>Once again, this problem started two weeks ago. Mathematica 4.1 was
>working fine up to then. I have not install new software and I have not,
>as far as I know, changed the options of Windows 2000. Mathematica is
>the only program not currently working properly on my machine.
>Anyone has already experienced similar problem and hopefuly found a
>solution? I would appreciate some help
>B Carmichael
>chercheur invite
>Groupe de recherche en Economie quantitative d'Aix-Marseille (GREQAM)
>Departement d'Economique
>Universite Laval

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