The power cord that came with my unit has 2 big prong sticking out of it instead of two slits of metal coming off of it. I'm assuming this is european or something because this will not fit in any socket I have(I live in america). What do I do? Do I have to order a separate cable from acer or can I get one that will work from a local computer shop or what?? Thanks for any help Also can I use a power cable that came with a different laptop?