Thank you for responses fellow Penguins and Coyote
I am just in the process of endeavouring to try messing about with the Windows driver to see if I can do anything with it and if I do have any success I will post back here so that others will know. Judging by lack of anyone else showing success to date I don't hold out a lot of hope.
On the idea of using Win VM - alas no it didn't work. That was one of my early trys - anything to enable me to get rid of the dual boot option - it annoys the heck out of me.
I haven't looked at XawTV etc just yet but will do so and see if there is any luck. I will definitely give that other Yuan driver a go although again not really confident going by the response I got from Yuan themselves. They just don't seem to care.
As for Toshiba - don't think I will be anymore of there PC related products. Support is in name only unless $$$ change hands from what I can see. Can't even find a link to email them without paying first?
Thanks guys for the pointers - much appreciated. As I said above if I have any luck with anything I will post results.