Qtronix Libra 90PM/NET and Libra 35 PM/NET Trackballs
Windows XP, Windows 2000, Windows ME, Windows 98 (Sorry Windows Vista NOT supported)
Driver Date & Version
12/04/2001 (VER. 1.0)
Qtronix Libra 90 and Libra 35 are trackball products released around year 2001 (see driver date) thus no Vista driver provided. The latest driver is for Windows XP and below.
To install the driver just download the zip file, extract them to a temporary folder and run the setup.exe file.
Ah..just in case you need a Serial Number for the XP Driver :21120102-2128290383 or 21120102-2110328417. I do not know if you need them or not (who need a key for installing a DRIVER? They are provided on Qtronix driver download page.
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- Download Qtronix Libra 90 Vista Driver