Morning all, I've been trying to work out why I'm getting jittery Live-TV, the system is brand new, on a 3gig P4 CPU, with 1gig of memory. Everything runs fine except for really poor performance on some channels - I ran Microsoft's perfmon over the weekend to try and understand what's going on .... the only slight delay is caused by I/O read delays on the physical disk - but nothing which should indicate a problem, and certainly nothing which cannot be fixed through RAID-0. The only other thing of concern is this "bandwidth meter" on the nvidia decoder software, TV programs running ok with no tearing or stutter seem to show 2-3Mbps, however shows with problems regularly drop to 1 or below .... what I'm trying to understand is if this meter is an indicator of signal strength, or the quality of the broadcast. If it's signal strength, then I'll try and get an installer out to look at the aeriel on the roof. Any help or advice is really appreciated.