Issues with HD channels

Hi all.
I'm having issues with the UK Freesat HD channels randomly glitching under kaffeine on Kubuntu 11.04 64bit, by glitching I mean audio pops & slow down of picture, when I pause & let it buffer it plays back fine no issues or anything, Is this a fault with the box or kaffeine?
I know I could just pause and let it timeshift for a few minutes but it's rather annoying having to pause it every time I change channel.
Other than that I'm extremely pleased with the device.
Any advice would be gratefully received
I'm having issues with the UK Freesat HD channels randomly glitching under kaffeine on Kubuntu 11.04 64bit, by glitching I mean audio pops & slow down of picture, when I pause & let it buffer it plays back fine no issues or anything, Is this a fault with the box or kaffeine?
I know I could just pause and let it timeshift for a few minutes but it's rather annoying having to pause it every time I change channel.
Other than that I'm extremely pleased with the device.
Any advice would be gratefully received
