Currently running Win2K Pro with Service Pack 4 on Abit TH7-II motherboard, Pentium 4 1.7 GHz, 512MB RDRAM and Maxtor Diamondmax Plus 9 80GB hard drive. When scanning my system for viruses using either Norton Antivirus 2004 or Trend Micro's online Housecall, the hard drive will suddenly stop scanning and the desktop tower's speaker will start to beep. I don't quite know how to describe the beep so please forgive me. The beeping is just two tones, kinda like an ambulence or police siren. As in it is not "beep beep beep..." but more like "ee or ee or..." Would users please advice me on what might be the problem? Just to be safe I am going to back up my data now.