Hi Jimi just read your last post thought i may add this windows 7 with all service packs in will automatically pick up and install the usb to rs232 adapter driver and olay you're free to go i have done several boxes using this method with windows 7 my only advice would be to people trying this if u gonna buy a rs232 to USB adapter do not buy a cheap 2.99 one from ebay they will never work i paid a tenner for mine and its got me out of trouble many times.
I actually bought this to run my telescope from my Laptop (yes im an astronomy geek) it just happened to work on my box
Brian[/QUOTE
To be honest brin the one I now use cost me 69p on Ebay and works a treat on Vista, the only thing is it defaults to com3 so you need to set it to com1.