Microsoft KB Archive/38497

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Cursor May Disappear in EGA 43-Line Mode Using Logitech Mouse

Article ID: 38497

Article Last Modified on 11/21/2006

This article was previously published under Q38497


It has been reported that when using a LogiTech mouse and QB.EXE in EGA 43-line mode, the mouse cursor disappears below the 25th line. The mouse is active even though invisible, i.e., it can place the cursor at any location on the screen, or make selections in dialog boxes.

When using the Microsoft Mouse and the mouse driver that is included with QuickBasic Version 4.50, the mouse operates properly in 25-line, 43-line, and 50-line modes.


Microsoft does not claim compatibility of QuickBasic with the LogiTech mouse, or any mouse other than the Microsoft Mouse. QuickBasic requires you to use the Microsoft Mouse with the mouse driver that comes on the QuickBasic disk (or a later version of the Microsoft Mouse driver).

Although Microsoft does not claim compatibility, QuickBasic should work correctly with the latest Logitech mouse drivers (such as Versions 3.42 and 3.43). Earlier versions such as LogiMouse driver Version 3.2 will not work correctly with QuickBasic. If QuickBasic does not work with your version of the LogiMouse driver, you should contact Logitech to determine if an upgrade driver is available. Logitech's phone numbers are as follows:

LogiMouse (415) 795-8500
LogiTech, Inc. (415) 795-0427 Technical Support Line

Additional query words: QuickBas

Keywords: KB38497