My laptop uses Windows 8.1.

At some point, after playing a round of Rush with one of my custom color palettes selected (Tensity, my second one, which is one palette before the last one in that file), I switched over to Relaxed, selected the default music, then pressed Tab a few times wanting to pause the game as soon as it starts while I go do something, and suddenly, my mouse appeared in the middle of the screen doing the "I" thing like it's hovering over text (I later discovered this was because of the error handler appearing behind the game) and the game stopped responding.

I pressed Alt+Tab a few times, to no avail, then used Ctrl+Alt+Delete to open my task manager, and, well, the game itself was minimized (showing a white screen whenever I hovered over the preview with my mouse). I decided to close the game via hovering over it on the toolbar at the bottom of the screen and clicking the little red X, which closed both the game and the error handler.

Ultimately, I think what may have happened is I accidentally attempted to pause the game while it was still in its startup sequence, but I don't know the first thing about this sorta stuff. o3o