Cheers guys.

Panic over for now - turns out it was my brain cells that were fried and not the input pins. The switch was behaving differently to how I expected it to - rather than take a closer look at what the switch was doing, I began a campaign of button mashing which lasted well into the night - not a great idea after a full day of assembling the bugger..!

A clearer head this morning, a quick chat with Clive and a better look at what my switches were up to yielded better results..! (Oh, and restoring my back up .ini)

Should have it up and running in the next few days.

Wal.