Did you exit Excel, reopen Excel and try to open your file again? Sometimes
that message only applies to what was in memory, not the disc file.

"headly" wrote:

I spent about 8 hours coding a form, set the workbooks on open property to
show the form. Saved and closed the file, when I re-opened I get System Error
&H8000FFF Catastrophic Failure. Using XL V. 11.8146.8132. The repaired file
shows an error log that says 'lost vb project' and my form is gone. Are
excels vb forms totally unreliable or was it something else?