Okay, in the 'My Games' tab of my Steam account, I have downloaded (and have run several times each) Portal, Team Fortress 2, Garry's Mod, and the Half-Life 2 Demo. I haven't used CrossOver Games in a few days. I booted it up just now, opened Steam, and went to 'My Games', to find that while the Half-Life 2 Demo is still fully downloaded and ready at 100%, Portal, Team Fortress 2, and Garry's Mod read 'Downloading: 0%', regardless of the fact that they're not actually downloading. What's going on?