PDF-Xchange Printer 2012 Lite (aka PDFSaver5L) not printing.

[kerflot]

Sandboxie v 3.72 Windows 7 Premium 32bit.

I just updated to the new Tracker Software pdf printer driver and find that I cannot use it when I try to print a PDF document from a Sandboxed window.

I had no problems with the previous version.
I've given all the files in the PDF-Xchange Lite 5 folder "Full Access" (Resource Access > File Access) but it didn't make any differnce.

Any suggestions?