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Square Blocks Appear While Scrolling Through |
The information in this document applies to:
WordPerfect® 5.1 for DOS
Problem
Symptoms: White, square blocks the size of a character randomly display on the screen while the customer scrolls through the List Files screen. The customer has a monochrome display card that is Hercules compatible. Solutions: Starting WP with the /NF startup option solved the problem. How/Why: Normally WP writes directly to video memory and bypasses the video BIOS; this process speeds up the screen rewrite, especially when scrolling. On older CGA and Hercules-compatible cards this process may cause flashing vertical lines, snow, and random screen-font-cell-rewrite problems as mentioned above. The /NF startup option forces WP to use the video BIOS to write to video memory and will solve these display problems. |
Answer:
Details:
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