Win 7 Ice-TV Beta Problem

[ufpcs]

Installed Ice Tv Win 7 beta yesterday (26-10-2009) ran for several hours all okay.
Run the system today (27-10-2009) & picture is glitchy with audio out of sync on all channels.
Recovered system back to image before Ice TV & all is good again. No more glitchy picture or audio sync issues.
Will re-install Ice again when I get a chance, is there any know issues out there already regarding this?
We are running Win7 64bit.