I'm sure that makes no sense really, but: While in a campaign, the graphics for the action bar on the left (layer, select, etc) will occasionally shift further to the left, being slightly off-screen at that point. When this happens, the tokens on the map will remain in place visually, but to select them, I have to position the mouse cursor some distance (perhaps a grid and a half) away from the token. Refreshing the game fixes the problem instantly. This happens on two computers, Windows XP and Windows 7, both using up-to-date google chrome web browser. I have not determined what causes the problem, but it may be either switching browser tabs, or switching program windows, since I tend to notice it upon returning to the campaign window. But I haven't managed to stare down the shifting actions panel, so it might just be happening in a time based manner, and I don't notice (since I spend more time writing than moving tokens).
