I am running Windows 7 on a Dual-boot iMac.
Have been doing so 5 months, no problems.
When I booted up today into Windows 7, there was no mouse cursor.
I tried another mouse which I knew is OK, still no cursor.
Then I noticed that if I moved the mouse about vigourously, a cursor appeared from the top right-hand corner but quickly shot back into the corner and disappeared.
Any suggestions re how I can cure this please?