Sorry to hear you are having problems with youtube on the marquee. I have not experienced any issues when watching youtube. I would think your problem might be due to data connection/ speed (remember you are on the NOW network). Sometimes, when I am not using wifi, the youtube will buffer (where the circle spins around for a while, until the video starts to play. I previously had a blackberry bold and then the evo 4g. I found the blackberry to have the best signal strength (never had one single dropped call), while the evo was very good. I have had several dropped calls, echo conversations, and static with this phone. When I have had a clear phone connection from the start, this phone has had the best voice quality of all three phones - loud and very,very clear.