This problem started last night when loading up Marvel Heroes, and again today when loading up FFXIV. When alt+tabbed, the mouse cursor is sliding/moving of its own accord, albeit much slower than usual. It also takes forever for my input to be accepted (typing into browser, google searches, and the like). I closed the games both times and it persisted. A reboot seems to have "fixed" it both times, but I am worried this could persist. Any ideas? I can provide any information needed. My specs are in sig, I am using a Razer Naga.