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Keyboard Acting As If Shift Key Is Held Down |
The information in this document applies to:
WordPerfect® 5.1 for DOS
Problem
Symptoms: Intermittently, the keyboard will act as if the Shift key has been held down. This happens when the Num Lock key is On. Solutions: Development is aware of this problem. Development explains, "This is not a WP problem, but a problem with certain AT BIOS's. This occurs because the AT-BIOS Interrupt 9 routine executes an STI instruction before the enhanced 4 scan code is serviced. The Artisoft software changes the Interrupt 9 vector address to point after the STI instruction. They provide this in a .SYS form to be run from the CONFIG.SYS, if necessary. In cases where this doesn't work they provide a TSR that masks IRQ0 so the keyboard can't be interrupted by the timer." Artisoft has written several utilities which have eliminated many problems with the Shift key. These utilities are Freeware, which means they may be freely distributed. If you ever experience this type of problem again when running one of these utilities and using /NC/NK, please report it in a new STR. |
Answer:
Details:
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