Well, didn't find out "what" that weird noise was, but found out what cubical it was coming from. Some guy over the wall and down a couple of cubes. His computer was off, but seemed to be coming from his computer. Weird. Anyway, thank God it was not a bat. As soon as Dave came in and turned his computer on, the noise quit. ?? Some guy was teasing me and said "Oh, Karen! Its Dave's MOUSE!!" Uh huh... funny. ;-) At least others were hearing the noise as well and I wasn't losing my mind. Yet.