My 5 in 1 card reader is not working......it can read SD\MMC\MS\Pro\xD.....?

i have got a sony memory stick duo adaptor (MSAC-M2) which has a capacity of 1 GB ......... It has a a lot of pictures saved in it.....i have a dell inspiron laptop 6400 with 1.73Ghz processor,intel core 2 duo ,a ram of 1024 mb and windows vista.....i put the card inside but the laptop won't respond.....even when i put it in i can take it out without even pushing it..... i can just pull it and it will come out....is this a problem with laptop,card readeror the memory stick....plz help i want to store the pics at any moment