Sky + keeps freezing on me!!

Has anybody been having problems with their sky ever since they installed the newest and very attractive offer Sky +. I certainly have, Sky Plus allows you to paus, rewindl, fast forward, play and record any films or programmes you want, then watch them when you want. At home my Sky plus seems to jump a lot, particularly when i am watching a recorded programme or film, its getting very irritating. When i was at work last week the rugby was on, it was freezing and kept cutting off, the customers were very agitated and kept commenting about how some complaint should be made to Sky themselves. I agree, i feel it is a flaw that has only surfaced now, im not sure whether Sky are aware of this problem but something will be done about it when people start to load in the complaints...