Started happening recently. Maybe an upgrade or some new glitch in system caused it. Experimenting, and found that turning on the Mouse’s Pointer trails eliminated the problem.
- Windows 7 Professional
- UltrMon 3.2.2
- HP PC p6230y
- AMD Phenon II X4 810 Processor 2.60 GHz
- System Mouse driver
- Found later this resource that also has the “mouse trail” fix approach: Mouse pointer disappears on second monitor