BMW

The car wont turn on...period no lights once doors are open central locking doesnt work anti theft light doesnt blink stereo nope cannot open my trunk(where the battery is) jus bought a brand new battery 2weeks ago what could the problem be and sum1 answer this because i jus got my car registered yesterday! (11/17/07) and today is 11/18/07 sum1 help ill email you a dollar...no i wont but policeeez help meeeee! ! ! ! ! ! ! impossible to be the battery because i just got a battery from auto-zone...it might b due to the fact i left this heater on which was plugged into the cigarette light....(http://www.autobarn.com/images/roadworthy/spaceheat2.jpg) but i truly believe that cannot waste a brand new battery in one night.. tried to jump that dont work but ill jus take it to the mechanic after skoo ugh! ! 1st cars are so annoyin but if someone could just think of something so i wont have to cath the bus in the mornin to school..because well its cold in connecticut

Most likely its bad battery