Have had the Proline for a couple of years with no problems at all (except Gladiator 2nd disc, of course). Have just bought some R4 discs, and neither Ronin or Chitty will play (but others are fine). They do not even seem to load. The Proline logo stays on screen, the DVD display shows LOAD (but scrolls VERY slowly ), but nowt happens. Anyone any ideas - any help appreciated.