Knowledge Base Article Number: Q0315
Created On: 20 Apr 2011
Magnification wipes screen away in a specific application in Windows XP
Applies to:
- SuperNova Access Suite
- SuperNova Magnifier
- SuperNova Reader Magnifier
Description:
You may experience screen corruption using the SuperNova Magnifier with some applications in windows XP. These applications will typically be using Windows Graphics Device Interface (GDI) or Direct Draw technology.
Solution/workaround:
To prevent screen corruption you need to select the “DirectDraw / GDI+” check box in the SuperNova control panel.
To do this:
1. Press LEFT CONTROL + SPACEBAR. The SuperNova control panel opens.
2. Press ALT + V. The “Visual” menu opens.
3. DOWN ARROW to “Advanced Options” and press ENTER. The “Visual Advanced Options” dialog box opens.
4. TAB to the “Video Compatibility” button and press SPACEBAR. The “Video Compatibility” dialog box opens.
5. TAB to the “DirectDraw / GDI+” check box and press SPACEBAR.
6. TAB to the “OK” button and press SPACEBAR. The screen resets. The dialog box closes.
7. Press ESCAPE twice. The SuperNova control panel closes.
Re-assess the performance of SuperNova Magnifier in the application. Screen corruption should now be resolved.
Notes:
· The SuperNova “DirectDraw / GDI+” check box is only available on a Windows XP operating system. New technology in later versions of Windows means screen corruption due to DirectDraw or GDI+ technology is not an issue.
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The information provided in this knowledge base article has been reviewed and is believed to be accurate and is provided "as is" without any warranties expressed or implied. In no event shall Dolphin Computer Access Ltd. nor its affiliates assume any responsibility for inaccuracies, errors, incidental or consequential damages resulting from any defect or omission in this document, even if advised of the possibility of such damages.
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