Hi Tim I've never had any problems at all other than the file associations as you've mentioned. In fact I've got 8, 8.5, MX and MX2004 all installed and the only problem I've ever encountered is the application icon for MX and MX2004 is the same so I keep confusing them on my Quick Launch bar!
Ross [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]