5th Mouse Button and Expose and Spaces
BTW, I am using a Microsoft Trackball Explorer.
MacBook Pro late 2008, Mac OS X (10.6), Microsoft Trackball Explorer
MacBook Pro late 2008, Mac OS X (10.6), Microsoft Trackball Explorer
I'm also having this problem, pre and post High Sierra. I've done all the troubleshooting recommended in other posts, and for a little while, it works as expected. But then show desktop assigned to button 5 just randomly stops working. Apparently this has been a problem with OS X for 8 years.
5th Mouse Button and Expose and Spaces