HI guys!! my aunt bought a new pc with a vista for its OS and a lexmark printer with scanner and a fax machine.. and then at the first the printer worked.. but few weeks later it won't print... i already plugged and unplugged its usb ports and tried other port... but nothing worked. I tried our old printer that is epson stylus c41ux it worked but we need the LEXMARK printer because we have a lot of inks here... please help...