Has anyone encountered issues with using the MoveTo when the uploader runs on a Server 2008 install?

We're seeing different permissions assigned to the file after it's moved from the temp folder using the MoveTo function.  We even created a standard .Net upload page to test.  The standard page uploads the file and the file permissions are just fine.  However files uploaded and subsequently moved from the temp folder using the AJAX uploader cannot be accessed after they're moved.

 

Thoughts?