FOR THOSE WITH THE ALARM BUG:
Install G-Alarm 1.5.1 here:
http://www.ageye.de/index.php?s=download
On first run it will ask you to "Fix windows alarm bug". Press yes, it will soft reset. Try using G-Alarm and see if it fixes the problem. You can also try the normal Windows alarms if you don't like G-Alarm, because G-Alarm tries to fix that bug for all alarms I think.