Premier Elements 11 - "no burner detected"

I have recently upgraded from elements 9 to elements 11. The software is installed on my lap topPC which runs on Windows 7 64bit.

The programme is working perfectly except for when I try to burn a project onto a DVD. When I select share and burn to DVD I get a message saying "no burner detected". I had no problem with version 9 on the same lap top from which I was able to burn a DVD without any difficulty. Funnily enough, if I select to burn as AVCHD the disc burner is detected.

The lap top is an Asus N55S intel core i7 - 2.2 Ghz with 6GB ram

I hope someone can offer a solution to this perplexing problem

Thanks

Brian Saberton