VirusScanNT causing max CPU & very slow email download

[FreyGuy]

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Hi all;

I am running PMMail 2000 v2.10.2010
Using NT 4 SP5.
I'm running McAfee VirusScanNT v4.0.3a, DAT version latest (4062).

Recently, I have found that when McAfee is Enabled in the system tray and I have email to download, during the download of the email the messages come down very very slowly and my CPU is 
maxed with the mcshield task taking up all of the CPU cycles.  This same behavior doesn't happen when I tried downloading with Netscape pop mail or Lotus Notes pop mail.  

This just started happening recently, and it may be due to the recent updated DATs, although I'm not certain.
I have duplicated this problem on a similarly configured PC, with the same software levels of all interested parties.  
When I Disable my VirusScanNT systemtray icon, even during the middle of the email download, the download immediately speeds up to normal expected speed.  

Has anyone else with a similar config (or not?) run into this problem.

Thanks in advance for any insight or shared experiences

Kevin Frey
freyguy@psn.net

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