Well if I would have an easy workaround or fix, it would be already available.
The problem is that the call to the rename function of the plattform just failes sometimes. Its possibly a locking/synchronization issues somewhere since it not always occures.
There is a SVN development branch with a changed file handling concept for downloads. It provides a centralized buffer and data writing layer. It will likely solve the problem but could also introduce new problems in other areas (corrupt files, memory overflows etc.), thats why this code is still not available in a release.
But if you like to test it and report problems, which would help us very much, you can access it via SVN at:
https://svn.sourceforge.net/svnroot/...-rework-branch
Here you can read more how to use SVN:
http://www.phex.org/wiki/index.php/Subversion http://www.phex.org/wiki/index.php/B...rom_Subversion
Gregor