Hello eveybody, thank you for an immense forum full of help and information I have an old G5 imac that I am using in my front room as a media player. Here are the Secs: 1.8 Ghz PPC Processor 1.5 GB Ram 10.5.8 Leopard Using 20mb Virgin media cable broadband, wired via ethernet to modem. I am having trouble, especially with BBC iplayer in that video will not play smoothly. I realise that my imac will not do HD but I was hoping that it would stream SD video ok. Sometime next year I am going to upgrade to an intel Mac so do not want to spend loads of extra money on it but I would really welcome some suggestions on how I could get it running more smoothly and playing videos without 'juddering'! So far I have updated to newest Flash (10.1), made sure the energy savings tab is set to 'Automatic' (Highest made the fan go crazy all the time!) and disabled the dashboard to claim back some power.