Export to AIR - file not generated

After installing Xcelsius 2008 SP1, Adobe AIR and the Flex SDK on a Windows XP machine, I was able to successfully export an AIR file. However, after this first attempt, Xcelsius no longer generates AIR files. When I choose File>Export>AIR from the menu, after the initial dialogue box, Xcelsius displays the standard message "Generating Swf" and completes the process without generating any error messages. However, when I check the folder I specified for the output, there is no AIR file.

I have tried creating a new XLF file and outputting to different file paths but in each case, Xcelsius appears to complete the export process but doesn't actually generate the AIR file.

I would appreciate any suggestions for what might be the cause of this issue.

Thanks,

Mustafa Bensan.