Correction the #2038 is not directly related to file size. At least not in Safari.
I'm on my Apple computer now, in Safari, and when trying to upload a file of eg. 6 Mb, I get the following error (JavaScript alert):
- AjaxUploader file error: About Downloads.lpdf , Flash : The upload task is interrupted! io Error #2038
- Server side error :
And below that is the html of the page my users get redirected to by the error handler in our application when an exception occurs.
Regards, Marja