vibrate randomly stopped working

my phone is normally ALWAYS on vibrate especially for work, however yesterday it suddenly stopped working. i did not touch any settings, it just died. I played around with everything, rebooted several times, got rid of some apps that might cause issues, etc. So I ended up at AT&T and no one in the store could fix, however when they called the warranty department they claimed this is a "known bug" for the torch and that there is a fix for it. However i need to be on a phone with the warranty department and my computer and plug in my blackberry... well my blackberry is my only phone until i get out tomorrow. Has anyone had this happen or know of a possible "fix" for this?