See, this is exactly why linux will never be mainstream. Because crap like this springs up and there's never really a satisfactory resolution.
Anyway, I just encountered this same exact problem. It happened for me when I put it into window mode alt-enter. Following it I switched from desktop 1 to desktop 2 and then back again, the guild wars window would disappear. Following attempts to start gw yields the same results as you guys have already described.
I think it has something to do with wine not liking gw in window mode and just losing its focus. I suspect gw saves what window size to start with somewhere in gw.dat. So I'm going to boot back into windows, start gw from there, make it fullscreen and see if that fixes it in ubuntu.
Bookmarks