Well, guess I spoke too soon. 

I had to un-install the RenderCow software on the new computer.  It runs OK during the render, but for some reason, when it is running just in the background the computer starts to act really weird.  The mouse is erratic (very sluggish) and the CD drawer keeps opening and closing.  As soon as I un-installed RenderCow, this problem went away.  Re-installed, problem returned again after the computer ran for a while.  Un-installed agin and so far computer is fine.  This is a brand new computer with only Windows XP on it - no other software...

I can try re-installing it, but not have it run in the background.  Maybe tomorrow. 

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