Fixed... 

edit you corrupted xdf files with notepad or something similar.  use code from other good known xdf files for a similar block you need to view and copy over their parameters.  put in the address that is HOPEFULLY right from the previously corrupted xdf.

I would email Mark.  He is a cool dude and will respond.

Nye,
I am mostly editing xdf files as I move code from one type of ecu to another to try and succeed in my single bank quest.  Lots of trial and error.  But I cannot edit them with tuner pro, anything I do, the first digit I type in any window and bam.  Its crashed out.

I have been hopefully finding success in editing by hand, or are you saying that i am not going to?  I could understand if changing one section of the xdf info would cause others to not communicate with it properly, is this the case?

Thus far my changes to xdfs that were sourced from here and around the web have been increasing stability within other aspects of the program, like actual tuning of maps, being ablt to compare bins and so on.

I couldnt even open certain maps/scalars before without it crashing because xdfs were bad or setup wrong.  Not the m-box stuff, just more obscure stuff.

What i have done is take known good working chunks from something like your m-box xdf and substituted it in for the problematic chunks that i find by hand.  Then just change the location to what it was originally and it seems to fix it.

I must thank you for having a good xdf to be able to see what things should be formatted like.