LabVIEW automatically saves
files before an irregular shutdown or system failure.  It does this by
saving open files at specified intervals and in the event of an
irregular shutdown or system faluire, the 'Select Files to Recover'
window pops up to display recoverable files the next time LabVIEW is
launched.  This window allows you to compare the latest automatically
saved version of the file with the file listed as a recoverable file,
this will open both versions and allow you to choose the version to
keep.  There are also options for discarding recovered files, etc. 
Basically, there is another copy of the file saved as a backup for the
case when you lose power, once you restore LabVIEW you have options to
choose a backup copy or your "original".  In your case, the "original"
is corrupt and since the auto-saving was disabled, there is not a
backup to use in place of the corrupt file.  I am sorry this is the
case, I would of really liked to everything working for you.  Please
consider using the auto-save for recovery in the future.

-Bob