I've yet to install version 2 on my computer..I know a little behind the times..but have been content with working in 1. If it's not broke don't fix it sort of situation. A work colleague (my hampster for testing out updates) works in version 2. Recently we've discovered that 1 can not open files created in 2 nor even access blocks, styles, etc. that have been used by 2. We've decided that Autodesk and it's wisdom would have created a setting to save version 2 files back to version 1 to make it accessible. Sort of like how one can save CAD files back to earlier versions. Is there a setting some place that I have missed that can rectify this issue or an add-on that should be installed?