It could be many things. May be down to a bad hard drive if its maving problems after pausing. Signal issues or any number of other things. Do recordings do the same thing? and is the on demand working ok?
This might be one the VM techs need to test the box for as they will see HDD errors we can not.
Let's be honest the whole TiVo setup is poor, compared to sky's setup its amateurish. It's slow, buggy and quite honestly not fit for purpose as it is . So the v6 is out, TiVo is fast and works. But do we get the v6 to replace the poor boxes we have. No, well yes but not free of charge. And if your on a deal you monthly charge goes up also. The TiVo service on the v+ boxes is not acceptable and if can't be improved upon New boxes should be free of charge. I have been with virgin for 13 month's and this TiVo service is in need of a complete overall. I was willing to pay the 64 pound for the new box and installation, but not when I found out my monthly bill would rise to due to loss of deal I got when first signing up. When my contract runs out in a few months I'm gone. I can't stand this slow TiVo any longer.