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Black Lines Flashing Even At DOS |
The information in this document applies to:
WordPerfect® 5.1 for DOS
Problem
Symptoms: The customer gets black lines at the bottom and the top of the screen. Folio states that the 03/30/90 release should have fixed this, but he got that release and is still having the same problem. What happens is when he starts typing a document, everything is fine until his cursor reaches the last line on the screen and then it turns black and stays black. Then when he cursors up to the top, he gets the same black lines at the top of the screen. He has a Tatung CGA monitor with a noname CGA card. Solutions: The customer is also having this problem at DOS. We went to a C: prompt then pressed the Enter key until the screen started to scroll, and the flashing line at the top of the screen was visible. If the 03/30/90 release does not correct flashing problem with CGA cards always have them go to DOS and do a "dir" of a long directory. If the flashing happens at DOS then it's a problem with the CGA bios scroll calls on the card. This may not work in every situation, but can be used as a troubleshooting option. |
Answer:
Details:
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