HD OTA problems.

[gc123]

I have been having some strange problems with Live TV and HD recordings.

1) When using Live TV I get large stutter and Cpu usage goes from 40% to 100%, which is causing the stutter. But I can change channels sometimes and it will go away and Cpu usage will settle down to a constant 35-45% usage and I get a nice picture with only an ocasional very small glitch.

2) When I get HD Live TV in the Good mode with no stutering I can start recording and watch the show with no problems even jumping around with Rew and FF. But after stoping the recording and then trying to go back to the recording screen and trying to watch the recorded show it goes back to the large stuters with 40-100% cpu usage swings.

Recording and Playback of SD data streams are fine with only 35% Cpu usage.

Anybody got any ideas on how to fix this?

Here is my setup - AMD xp 3000+ , 512MB Ram, Geforce 6200 driving a 62 in 4:3 Mits, Audgy 2 Sound card, 120GB OS disk with Windows XP, 200GB Video Disk with 64K clusters, Kworld atsc-110 HD Tuner, using 1080i with overlay using Sage Drivers (or Intervideo with same results)