Just ran into an interesting bug on a box with Windows 2000 Professional. I had installed Adobe Acrobat Reader 6.0 and went to read a PDF document on the web. When I did, I got the error "The feature you are trying to use is on a network resource that is unavailable." and it was trying to find the .msi install file for Journal Viewer. Hitting Cancel just caused the installation to backup and try again. I had to close out of the browser and the PDF viewer application to stop the install from continuing. I found the answer in a KnowledgeBase article at Adobe. Basically, you have to download and install Windows Journal Viewer (duh, I didn't REALLY need the article to tell me that....I wanted to know WHY, DAMMIT!) This was pretty weird that Acrobat Reader required Journal Viewer to run.