Hello everyone, I am having a bit of an issue with saving my Pro Tools session. I have to a school project, I downloaded the file with all audio files and everything. I did my mix, saved and all that. And now i have to make the session compatible with our schools systems which are on 9, not 10. The format for 10 is a .ptx file and the format for a 9 session are .ptf. When i go to change my file from a .ptx to a .ptf, it asks me if i want to change it, i click yes, then all my audio tracks go away completely and all i have is a blank session. am i doing something wrong? I check the disk allocation and all audio files are being saved to the same place, but they just disappear.. weird.