For some reason, Youtube videos were strangely discolored. I’d occasionally also experience the flash video staying on the screen even after switching virtual desktops. The video would “float” above my terminal windows whenever I switched, even if the flash video wasn’t on the active tab in my browser. I wasn’t sure how to fix it, or even how to look up how to fix it, but then flash videos started getting discolored, which proved to be easier to Google. This blogpost helped me figure out what was going on. Apparently disabling hardware acceleration for Flash fixed the issue. I wonder if this is a bug in the newer version of Flash?