If you had sleepntimers before today, sounds like you were on the old SARA guide before. The Nextbox guide has never had sleep timers.
I don't even know if Rogers will reload the old guides on the 4642, as they are now considered part of the Nextbox 3 family, but you can call them and try....
I'm getting a Black Screen (lags about 3 seconds) while channeling up and down and lag while using the guide (scrolling down the channel line up mostly) The old Menu Guide software was so fast.
It takes longer to switch channels but i have not experienced a drop in Quality.
This being my first update (that i've noticed) does rogers apply updates/patches to their boxes on a regular basis?
Cable TV - Tech Support told me last night this is the new "Standard"
This 3-5 second delay changing channels is strange, shows a complete black screen then the channel loads..