Yes, I have somewhat the same issue in Calgary (same climate as msantos FYI- well, OK, we can get Chinooks and Winnipeg, well, they can't

). In cooler weather (-5 deg C), If the car sat overnight, when I go into drive or reverse, I can get a lurching which I can only describe as a rubber band feel. It is like the CVT belt is tight and gives a little when I hit the accelerator. I have also tried putting the car into drive (without touching the gas pedal) to see if the car would slowly move forward. it won't until I give it a little gas (which then causes the sligth lurch as the CVT picks up the belt).
Not sure if it is an issue (and if it is, I have the 7year warranty so I am not too worried).