Windows 8.1 causes mousing issues; fix incoming
 

Still on the fence about upgrading to Windows 8.1? If you're a gamer, you may want to hold off a little while longer. As PC World reports, the latest Windows release causes a number of mouse-related issues, including jittery movement and lag.

Microsoft acknowledged the issues in this Microsoft Community thread last week. Moderator Naman R explained, "The 'mouse lag' issue is actually several ...

http://techreport.com/news/25599/win...s-fix-incoming