Had that since I bought it, it randomly doesn't wake me up. Subsequent alarms don't work because alarm window is modal. This stinks to high heaven, but not CSSU's fault. I admit the behavior changed slightly at some point, in early days of CSSU. But it was back. Maybe it was temporary, maybe it was a glitch. Yet another thing I expect N900 to be able to do. Really, alarm, how hard is that?