MD80 SUPER 80 ON THE COL 204 DEG RADIAL WAS BLOWN OFF COURSE. THE FLC WAS DISTR BY A CABIN ATTENDANT IN THE COCKPIT AND DID NOT CORRECT SOON ENOUGH TO PREVENT A CONFLICT.

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TKOF WAS ON RWY 4 AT LGA. ON DEP WE WERE LEVEL AT 12000 FT AT 250 KTS ASSIGNED ON A HDG OF 240 DEGS. WE WERE CLRED DIRECT COLTS NECK AND THEN THE 204 DEG RADIAL TO WHITE THEN AS FILED. THE FO WAS FLYING THIS LEG. HE SET COLTS NECK IN HIS VOR. I SET IN COYLE 046 DEG RADIAL INBOUND (226 DEGS). I TOLD HIM I HAD COYLE AND THE INBOUND RADIAL ON MY SIDE. THE WIND WAS 310 DEGS AT 100 KTS GIVING US A 90 DEG XWIND. OVER COLTS NECK HE TURNED TO INTERCEPT THE 204 DEG RADIAL OUTBOUND. AT THIS TIME THE #1 FLT ATTENDANT OPENED THE DOOR TO INFORM US OF A WATER LEAK IN THE FORWARD GALLEY. WE WERE BOTH DISTR MOMENTARILY. DURING THIS TIME THE WIND DRIFT CARRIED US L OF COURSE. THE FO WAS CORRECTING BACK R WHEN THE ZNY CTLR CALLED AND SAID TURN TO 275 DEGS. HE SAID WE WERE 4 NM TO THE L OF COURSE AND THAT ANOTHER ACFT WAS AT THE SAME ALT AND THE SAME DIRECTION. AT NO TIME DID WE GET ANY TCASII ALERTS; AND I DID NOT SEE ANY TFC VISUALLY OUT THE L SIDE OF THE ACFT. ON ARR AT PBI; I CALLED ZNY AND TALKED TO NYC SUPVR. HE SAID THEIR ALARM WENT OFF REQUIRING AN INVESTIGATION.