This could be an early sign of a detaching fuel filter. As the filter body unscrews, petrol delivery to the engine gets less and less adequate, causing hiccups during acceleration. When it finally separates, the engine simply won't start. It's easy to check and really does need eliminating from the equation. Fit the Orange Clip Gizmo while you're at it, you'll be glad you did.
See:
http://www.the75andztclub.co.uk/foru...ead.php?t=9068
and:
http://www.the75andztclub.co.uk/foru...ead.php?t=9108http://www.the75andztclub.co.uk/foru...ead.php?t=9108
for more details.
TC