For a week or so I've hit a strange issue with my Windows 7 64-bit machine.
Intermittently I get a problem with the cursor auto scrolling to the right. It's almost like the right arrow key is stuck down (but it's not! ). It happens across all apps/Windows. If I click in to a drop down list on a web page it auto scrolls to the bottom. Click in the Windows Sys Tray and it goes all disco as it flashes endlessly through all of the icons.
I've tried different keyboards, removed all keyboard/mouse drivers and re-installed. I've manually removed InterlliType/IntelliPoint and dropped on the most recent versions all to no avail.
It can take anywhere from 5 minutes after boot up to a couple of hours before it happens. I can clear the issue by doing Ctrl-Alt-Del and Switch User before logging back on.
AV/Malware checks have come up clear from a number of products. I tried a clean boot (via msconfig) and still saw the problem albeit less frequently.
Has anyone come across anything like this. I'm not going to spend too long fighting it - as I do the bulk of my work in VMs I'll just rebuild the host but thought I'd ask in case I end up seeing the same issue again after the rebuild.
I've also tried adding the environment variable to show all hidden/inactive devices and removed all of those in Device Manager as well.
I decided not to waste any more time on it and did the rebuild. All seemed great last night as I worked for a couple of hours with no issues setting my machine up again. Then as I power on this morning the bug is back after only a minute of use!
I've not even reinstalled all my usual software yet. It's a clean install, SP1 and then I've dropped on Office 2010, Skype, Watchguard VPN client, Chrome, Skydrive, UltraMon and DropBox.
I'm baffled - could this indicate that it actually is some kind of hardware issue?
Current thinking is a windows update conflicting with my kit. Haven't nailed down which one yet but a roll back to an earlier restore point seems to be bug free. I'm slowly putting stuff back on and will probably just have to step through updates one at a time to try and spot which one causes the issue.
Still happening on the rebuilt machine. An interesting point, the bug has now decided to change from being the right arrow key to the 0 key repeating!
When I clicked in to a couple of running VMs I found that XP was also showing the 0 bug but in W7 VM it was actually still doing the right arrow key!