Sony Ericsson Xperia X10 :: Delay Answering Incoming Phone Calls?

I recently bought this phone from Rogers (I still have a week to test this thing out to make sure it's not broken) I'm noticing that answering incoming calls can sometimes take up to 20 seconds before the other side can hear me! I can make calls and people can hear me as soon as the call begins but I'm answering the phone after it has shut itself down (I mean the screen goes dark and then I need to slide the slider on the screen to answer the call) SOMETIMES there will be a few seconds delay, sometimes nothing but I've had up to 20 seconds delay on multiple occasions I'm running 1.6, and from the sounds of it, we won't get 2.1 until next month but is ANYONE else getting these issues? Should I return this phone for another? This is inexcusable and I am having too many callers hang up the phone on me because they think they have a bad connection but in reality there is a delay before they can hear me.