OK - Sorry about the delay but have been busy with other problems
I've discovered that I need to set the resolution in 'PCC' first (and if you scroll down to "others" you DO
get Aspect Rations showing). I selected 1600x900 (16:9) but this made no difference. I then went and looked under 'Config Desktop' and found first that 'Primary Output' was set as "None" and the resolution was set at 1024x768. I changed this to VGA1 and matched the setting of 1600x900 and this worked perfectly!!
However despite me selecting this to be the Default every time I re-start the machine it goes back to 1024x768!! This tells me that the "set as default" is being overridden by some other setting somewhere. Does anyone know where this setting is and how I can change it to what I want. And for that matter what would cause this to change in the first place??
Thanks a lot.