graphic: 0.709 device: 0.685 semantic: 0.603 performance: 0.577 other: 0.499 network: 0.375 permissions: 0.329 vnc: 0.318 debug: 0.300 socket: 0.297 files: 0.269 PID: 0.257 boot: 0.250 KVM: 0.175 Mouse moves erratically when using scroll wheel on Windows NT 4, Windows 95, and Windows 3.1 guests QEMU version: 3.0.0 RC3 Guests: Windows NT 4.0, Windows 95, Windows 3.1 Program: When the user uses the scroll wheel, the mouse's movement becomes erratic. This is noticed immediately when the scroll wheel is used. Sometimes the problem can be fixed by moving the scroll wheel some more. My theory is this problem is because of the lack of support for the Microsoft Intellimouse in these guest operating systems. The QEMU project is currently considering to move its bug tracking to another system. For this we need to know which bugs are still valid and which could be closed already. Thus we are setting older bugs to "Incomplete" now. If you still think this bug report here is valid, then please switch the state back to "New" within the next 60 days, otherwise this report will be marked as "Expired". Or please mark it as "Fix Released" if the problem has been solved with a newer version of QEMU already. Thank you and sorry for the inconvenience. After doing tests with Windows 95, 3,1, NT 4.0, and 2000 I can say this bug appears to be fixed.