My MasterMouse Pro L had been working fine for the first couple of months. But around the time I added a 3rd monitor, the OS Sensitivity got screwed up. I use the software to set the sensitivity at 4 and apply it. Everything seems to work, just like when I write new macros and save them. But on a reboot the OS Sensitivity will be up at 7. How do I get it to remember the new setting if Apply doesn't do it?