rear scart sockets?

I have a 2 year old sanyo 28ins wide screen tv, the problem is that the scart sockets at the rear are playing up, sometimes I lose sound, colour etc, when inserted the scart leads seem to be a bit loose, obviously the connection is the problem, is there anyway I can resolve this with out to much expense, or indeed can I. We had a portable and the same problems arose, eventually we had to get rid of it as the scart at the rear just did not work at all, Many thanks.