actually, i was wondering that myself. every time i woke up last night i kept hearing it.

it was coming from the ac right under jon's desk (near where his feet would be).

i turned the ac's fan off (it was on high) and it seemed to stop immediately... we should probably turn it back on and see if it does it again and if it does, contact mantainence(sp?). i'm too lazy and need to be somewhere soon, so maybe later or something.