"The first time you open a library catagory. The ProPack converts all the thumbnail .rsr's to .png format. So that takes a second or two. After that. The library should open just as fast as it always did." That's just it, it happens EVERY TIME ... not just the first time. It's really getting to be annoying, and I'm really starting to hate the Pro Pack. Why do they have to go and fix things that aren't broke?? Also, Scott, are you experiencing the same problem with it asking for compressed CR2 files only? In this day and age of mass storage at extremely low cost, why bother with compression at all?? -Tim