A small percentage of people have been unable to play Desert Bridge because of a very, very bizarre problem. I have conducted a number of tests to find out what is causing the problem, but have only found some small hints. It looks like some systems can’t deal with the window type that Desert Bridge uses – this might have something to do with other bits of software installed on them, but that’s not certain (at all). So I’m working on an alternate version of the executable that will look slightly less pretty, but might work. I’ll upload it as soon as it’s done, and then we’ll see whether it works or not. I hope it will.