Rangers had a convincing win away to Dunfermline but Celtic remain four points behind following a home success over bottom club Inverness, whilst Hibs and Dundee Utd draw 3-3. The Gers had little difficulty in disposing of Dunfermline 4-0 following a Steven Naismith brace and strikes from Carlos Bocanegra and Maurice Edu.
The perfect 49th birthday present for boss Ally McCoist.
Caley had their moments but failed to take advantage of a nervy looking Hoops rearguard.
Garry O'Connor gave Hibs the lead but United turned the tide in a five-minute spell.
But the hosts bounced back through goals from Isaiah Osbourne and Junior Agogo to salvage a draw.
Aberdeen still remain without an away goal in league so far this campaign.
St Mirren moved up to fifth after disposing of Kilmarnock 3-0.