The application which is creating the file that Fling is uploading to my website periodically fails because it cannot access the file it's supposed to write to. I assume this is because it tries to write during an upload. At first I had Fling set to upload whenever it detected a change. Then I changed it to to look for changes only once per minute. The other app is creating the file once every three minutes. I could increase the time window on Fling, but I'm just wondering if there is a better way to deal with the problem.