Vista Home Premium 32 bit Vista SP2 NIS 2010 17.7.0.12 OK As many know I just installed NIS 2010. When I went to restart my computer, after I logged on and windows was doing its thing, I noticed a strange sound Sort of like a low pitch DUN sound, similar to when there is an error, but low pitch in sound. No windows popped up indicating any problems. Any guesses as to what this could be? As long as My NIS panel shows secure, there should be no issues, right?