I have a WebMatrix site available for Microsoft in case you want to do an autopsy and figure out why a file got dirtied.
It is a long story, but it all boils down to the following:
piece of code the compiles and runs;
I add foreach(var t in transactions)
{
}
After this it starts giving error message and I can never get it to run.
https://www.dropbox.com/lightbox/home/WebMatrix