im hoping for some advise on rear brakes.. my car is fitted with focus rs rear disks and calipers... just lately they have been sticking on... and i mean locked up wheels,smoke the lot!..now the car hasnt been used lately so im hoping they will sort them selves out but sitting for half a hour waiting for them to cool down is not funny...please can i have some advise on why they would be doing this and any good tips on fixing it...thanks in advance...