Flash Uploader stalls when uploading multiple files on the Mac
When uploading multiple files on the Mac, sometimes your browser will become unresponsive and the following error message will popup:
A script in this movie is causing Macromedia Flash Player 8/9 to run slowly. If
it continues to run, your computer may become unresponsive. Do you want to
abort the script?
This is an issue with the performance of the Flash plugin on the Mac. Clicking “No” will allow the script to continue and it should complete. Sometimes however it will stall completely. These are known issues with Flash on the Mac and we’re doing what we can to resolve them.

on November 9th, 2006 at 9:02 am
I have this problem also with de Flash plugin on non Mac-systems. What can i do about it?
on November 16th, 2006 at 6:32 pm
The issue can also arise for very large upload batches, often when people upload a large number of photos at one time. You can try uploading a smaller number of files at a time.