K 10 svn:author V 5 peter K 8 svn:date V 27 2009-08-20T23:07:53.820735Z K 7 svn:log V 168 MFC rev 196410 - deal with 'ticks' going negative after 24 days of uptime with the default 1000hz clock in the timewait expiration code. Approved by: re (kensmith) END