Well...this is and odd one. My Powerbook 1.25 is making strange noises at me. These sound like a strange cross between a banshees wail and a lightsabre opening ( sorry this is the best I can do!!!! ). It lasts about 1 second, and is reasonably subtle. In my opinion it sounds like a software sound ( as in a task completed etc. ) - BUT THERE IS NO CONTINUITY OF OPENED SOFTWARE THAT I CAN LINK IT TO. I think that I've had his sound with just the finder open. This has been going on for about a year, but very sporadically.Sometime nothing for weeks at a time, sometimes, like this morning, five or six of these sounds in a row. I'm pretty good with computers ( but no expert ) - and no, its not one of the system sounds. I don't have any unusual software - just the reg. Graphics packages etc. Could it be malware? Is this a background proccess I'm unaware of, such as indexing? I don't think it was there under Panther. Tis a mystery - and bugging me - please help!!!