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woff3212

macrumors newbie
Original poster
Dec 4, 2015
3
0
I have recently downloaded and installed El Capitan and ever since I did, my mouse is only working in the top left quadrant. I have restarted multiple times, but have not been able to get this issue resolved. Any help and guidance would be greatly appreciated!
 

desertman

macrumors 6502a
Jul 14, 2008
698
37
Arizona, USA
... what kind of monitor, one monitor or multiple monitors?

Have you tried to forcibly relaunch the Finder (Apple Symbol - Force Quit Applications - Finder - Relaunch)?
 
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