Hi Mike,
I'm calling it with an 'open vi reference', showing the front panel (property) and running the vi (method). the 'open vi reference' is passed the path of the the .vit file, so i belive that means it opens just an instance (.vi) of it.
the problem is (to rephrase) i double click on the .vit file, and instance is opened up, i modify that, save it as the original .vit filename (i get asked if i'm sure i want to replace it), i save and close. reopen and the changes weren't saved. So, when i run the .vit file (and get a .vi) it's the old file without the changes.
thanks for looking at this...