Glenn Murray squandered a first-half penalty as Brighton's winless run stretched to seven games with a goalless draw against high-flying Burnley.
Nahki Wells was once again an unused substitute for Burnley.
Albion dominated for long spells at the Amex Stadium but their search for a first Premier League victory since the start of November goes on after Murray blazed his 36th-minute spot kick high over the crossbar.
Anthony Knockaert had earlier rattled the woodwork for the Seagulls, while Sean Dyche's Clarets could have won it late on through Chris Wood as they missed a chance to move to fourth in the table.
It was the first top-flight meeting between the two clubs and Brighton boss Chris Hughton made four changes following the midweek defeat to Tottenham at Wembley in a bid to end his side's recent slump.
Murray was one of the men recalled and he headed an early opportunity straight at Clarets goalkeeper Nick Pope after being picked out by Bruno's right-wing center.
Port Vale moved four points clear of the League Two relegation zone with a 2-1 win at Reggie Lambe and his Carlisle united teammates.
Second-half goals from substitute Tyrone Barnett and Tom Pope put Vale in the driving seat before Richie Bennett pulled one back for Carlisle, whose winless run extended to four games.
Hallam Hope and Richie Bennett both failed the find the target early on for Carlisle while at the other end goalkeeper Jack Bonham deflected Michael Tonge's close range effort on to the crossbar.
Vale grabbed the advantage five minutes after half-time when a mix up involving Mike Jones and Clint Hill enabled David Worrall to set up an unmarked Barnett to coolly score into the bottom corner.
The visitors added a second on the break in the 69th minute when Worrall played in Pope who lifted the ball over the advancing Bonham.
Carlisle came close in 77th minute, with Bennett's header hitting the bar before Shaun Miller and Hope both had efforts cleared off the line.
Bennett scored three minutes later following Danny Grainger's corner but Carlisle could not find their way past Ryan Boot again.