really helpfull answer mate!
sounds like the igniter part of the control board that you see flashing! do you see a spark at the back of the burner (through the viewing window)? if you cant see a spark it could be a problem with the lead or the electrode, if you can see a spark at the back it could be a blockage at the pilot or it could be a lack of gas! dont wanna teach you to suck eggs but if your on a card gas meter check to make sure there is gas on!
hope this is more helpful!
KAW!
October 2007