[Client post-game] mouse cursor glitch

It's happened twice to me now, but at the "victory" nexus explosion my cursor has stuttered and then locked itself to the center of my screen and won't allow me to click continue. If I alt-tab out I can see it in the top left of the screen. Only fix is a forced power down because swapping out mice and disconnecting the touchpad didn't help. I can control alt delete and it frees my mouse but only in the log in screen. If I resume my session it loads back up with the stuck cursor. It's only happened after the explosion of the nexus.