I don't know if this was discussed or not, but when saving work from Vegas 13 it saves as Vegas 12. It will then reopen as 12 throwing things way out of whack. Any cure?
Usually .veg files are designated to one version of vegas on your computer. When you open 12 does it have a message like "do you want these files associated with this program blah blah blah" if it doesn't then does 13 have that message?
In short, this isn't Vegas, it's your Windows install. Windows doesn't know about Vegas versions. It just knows that a .veg file should be opened by Vegas. When you installed V13 it didn't inform Windows that it was now Vegas.
Right-mouse-button click on a .veg file and choose Open With. Browse to (probably)
C:\Program Files \ Sony \ Vegas Pro 13.0
(this will vary depending on your Windows install on your particular computer), find vegas130.exe (i assume this is the name, i don't have version 13 installed), and select it. Now find the checkbox that says "always open this file type with this program" and check it.
Windows now knows to open .veg files with Vegas 13 instead of 12.
But MikeyDH, in what way is Vegas Pro 12 throwing things way out of whack?
VP12 and VP13 are the first 2 versions I remember that feature backwards compatibility, I suppose because the lack of new features in VP13. I'm really pleased SCS have allowed it. I have many times opened VP13-created projects in VP12 to access the Peachrock Veggie Toolkit (which doesn't support VP13), to get functional closed captioning, to avoid crashes when renaming files, or simply to test things. I have never noticed anything go "wrong" by doing this.