Groupwise Server with 100% cpu utilization

We have a Groupwise 5.5 system setup on our network.  We have two Post offices and one of the servers where one of the post offices is loaded is constantly at 100% cpu utilization.  Our other PO is right around 7%.  Both are pretty steady at those rates.  Users on the trouble Post office are able to log in sometimes, but it takes a considerable amout of time to log in.  If we restart the server, the cpu utilization will return to a lower number, users can log in smoothly, and then the cpu utilization steadily climbs back up.  We also have a separate server that is running the web access agent, MTA, and GWIA.  All of the servers have 768mb ram.  Here's what we've tried so far:

-Top down rebuild
-Deleted and recreated the NGWGUARD.RFL
-Restarted all servers numerous times
-checked and replaced ngwguard.dc from software
-Called Novell technical support (they told us to do the top down rebuild)

Any recommendations on what to check for next to get the CPU utilization back down?  
jcollins1Asked:
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sverreCommented:
Do a purge on the volume that holds the Groupwisedatabases.
Is NDS healthy on the server?
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jcollins1Author Commented:
Already tried purging.  There is plenty of space.  I've run a dsrepair also.  Still no luck.
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tonnybrandtCommented:
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GUEENCommented:
What type of NIC card are you using? Switches? Hubs?
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DSPooleCommented:
Check you QuickFinder Indexing parameters - perhaps QuickFinder is updating it's indexes during the day?
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nordman051497Commented:
Some additional questions:

Have you checked what process is consuming CPU?
Does both servers has equal hardware?
What NIC does this server has?
What OS version are you running?
Is OS patched?
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GUEENCommented:
Check the profile - poster has 8 open questions - some left hanging from summer 2000. . .
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ComTechCommented:
jcollins1, would you care to complete your old questions before opening new ones?  If I have to do it for you, you may not like the results.

ComTech
Community Support

Ps. I would like to see this being done today.
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ComTechCommented:
Thank you for coming back and answering.

Though I will change the grade, this thin defaluts to a B.

ComTech,
Community Support Moderator
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tonnybrandtCommented:
Thank you ComTech, and also you jcollins1.

Regards
Tonny
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