My 1999 993cc Alto's handbrake is playing up. The car has done 5000 miles and the brakes are not worn. The handbrake most of the time comes right up to the top - six or seven clicks with a "catch" sometimes at about 4 clicks. Very occasionally the "catch" becomes firm at 4 clicks and the brake comes on - and I would like that all of the time. I had to fully adjust the cables "back" in the cabin when I got the car to get any handbrake effect at all. Is this a common problem? Thanks in advance.