PPES Hangs

[Scott K.]

I've opened cases with Cognos, but will through this out to the group.  Over the past few months, PPES has hung about once a week during the same time period each time.  We are running version 7.3.1240.0 on a Windows 2003 standard edition server, service pack 1, patches up to November 2008.  When the process hangs, the PPADMINTOOL.exe can not connect to PPES to KILL a cube process.  I end up killing all of the ppdsweb sessions, then kill the ppserver.exe process and things get back to normal.  Has anyone else seen this and what was the resolution?