Sony Ericsson W810i problem

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i m using SE W810i from last 3 moths. i use gprs 2 download stuff from internet. it was ok n downloading nice directly on memory card. yesterday i formatted my cell(reset all) n then bang, all downloads r takin on phone memory n i'm not able 2 download file more than 25mb(phone memory)! pls help me.. tell me how 2 take these downloads directly 2 memory card again?? there is no option in bult in internet services 2 change path of downloads.