The wide screen problem is a well known quirk of the hummy. set the hummy to 4:3 and format to letterbox, this seems to work on most things.
The crashing was probably my fault, bit impatient also I'm using windows 64 bit.
quite nice to see films streamed to the hummy that in the past I've only been able to watch by plugging my laptop into the TV
I agree you need a lot of grunt to transcode on the fly, also need no network traffic as well to enable maximum throughput that's why the pre-transcode is a good feature.
Still not convinced your toshiba sees the same file structure as the humax, if your tv has an usb port, you could always copy a humax file to a usb stick and see if it plays in your toshiba
In the past I've used wildmediaserver which also allows external web sites ie
www.liveonlinefooty,com to be streamed, in my case wirelessly, to the humax.but this is quite a pfaff to set up so in the main I use windows 7 and XBMC if I have to use a server.