It's been 3 weeks since i bought my 5800. I have few problems with the phone1. Battery dies off in one day ( i browse internet for atleast 2-3 hours, 1 hour of talking nad 20-40 mins of games) let me know about the performance of my battery.2. I am unable to access my calendar. when ever i click on calendar screen just flashes and remains in the smae page, no calendar is open.3. My video player jams for every 10 mins while watching movies in MP4 format4. Unable to watch videos in youtube. Says the video is loading and remains at 0% for a long while.5. Can we open multiple pages like Safari. is there any browser with simialr capabilities that can be instaled in 5800