CRASHED MACHINE = FB.overflow:1

[Gordon Dykes <Gordond@appleonline.net>]

After a few minutes on the net my Debian box crashes and I can not 
work in ANY terminal.  I can change between them but they all have 
the message

"FB.overflow:1"

 I then lift the phone and i still have the usual noises.
I use wvdial to connect to the Internet and lynx or w3m to browse.

Have any of you had this error before and now how to fix and avoid it.

Your time is much appreciated.
--
For evil to triumph it is only necessary for good men to buy Microsoft.