Help! Unwanted duplicate row inserts

I have a ProFORTRAN application, using SQL method 4, with the following problem.

When I do an INSERT, no matter how many rows I am inserting, the first row is always inserted twice!
I use an EXEC SQL FOR :SIZE etc...
and the value of SIZE is definitely correct. Further, I have printed out all the data in my host arrays that is being written, and it is all correct!.

Anybody ever have this wierd problem? I have written ProFORTRAN apps before and never seen this. I have called ORACLE, but they have, of course, not responded yet (and I would expect it to take months, given their previous track record with me). It's driving me nuts! Help!

-- 
Max Magliaro
MMM_at_ICF.HRB.COM
Philipsburg, Pennsylvania

"He may look like an idiot, and he may sound like an idiot, but don't
 let him fool you.  He really is an idiot." --- Groucho Marx