Your system might crash if the master browser, which is typically your PDC, receives a broadcast address of 0.0.0.0. If you have this problem on your system, you'll see the message "Stop 0xA in Netbt.sys" on the blue screen. The browser causes the crash when it incorrectly processes the 0.0.0.0 address. The problem applies to all Windows NT 4.0 systems, including Enterprise Edition and regardless of service pack level. Microsoft hasreleased a bug fix for netbt.sys on October 11, 1990. You can obtain the updated version only from Microsoft Support.