OLC posting of EW Model D files

The time has arrived to start posting flights.

I am using SeeYou version 3.7 to download EW files from my Model D and
convert them to IGC format.

My attempts to post an April 20 flight have all failed to validated. The
flight is scored; however, there is an error message that states "Security
code in file does not match computed value." I have attempted post the
flight using the SeeYou utility to connect and upload the file; the "Direct
Claim (IGC-file)"; and, the "Prepared Claim (OLC-file)" options. However,
all yield the same unsatisfactory results.

Last year the EW Model D - SeeYou - OLC flow worked flawlessly.

Have other EW Model D users been having a similar problem making claims to
OLC-2007?

Any assistance in resolving this problem will be greatly appreciated.

Wayne
HP-14 "6F"
http://www.soaridaho.com/