I was uploading files for several people this weekend. The igc files were
from a Volkslogger. I was unsuccessful in submitting the claim directly
thru SeeYou v3.7. I was successful in having SeeYou prepare the claim file
and then uploading it. The first time I tried a couple of them, I got some
long error list screen. I waited a short while and was able to upload
exactly the same file successfully.

John Scott