DOes your php.ini allow uploads? Are you trying to upload a file larger than what php.ini allows? Default is some real low file size like 2 megs or so. Php does not return an error if the file is too large, it just quietly discards it, which means threads doesn't know it failed. The scenario you describe is pretty much what happens if you're uploading a file larger than php itself currently allows.
![[Linked Image from navaho.infopop.cc]](http://navaho.infopop.cc/progress.gif)
