I have some of the issues also listed here:
1) Audio dropouts. I find I can alleviate this issue by rewinding a program by about 20 - 30 seconds, but it doesn't always work. This makes me beleive it's an issue with the box itself. Apparently, the ATT Uverse users have talked to great extent about this sort of issue
2) Summary menu poping up. This only seems to happen when wathing some recordings - and usually near the end.
I'm in the Don Mills / Eglington area by the way - so not sure which CO I'm connected to.