It seems that every time IE or an Office application is started, the print command is changed in the registry:
example:
HKEY_LOCAL_MACHINE\Software\CLASSES\htmlfile\shell\Print\command
Value "@": from ""I:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\msohtmed.exe" /p %1" to "rundll32.exe C:\WINDOWS\SYSTEM\MSHTML.DLL,PrintHTML "%1""
I'm thinking this may possibly have something to do with it.
reghakr