Just repaired the non-working drivers door catch.:regular_smile
I mistakenly thought it was either worn out or broken so I ordered a new one from Volvo for £38 this morning.
Managed to repair the existing one. The spring and one of the rollers was found in the bottom of the door.
I managed to put it back together with the help of the photos in this thread - many thanks.
Need to call Volvo Monday to cancel the order.
Mark.