So I ordered a 4gb sandisk sdhc, Well I wasn't paying attention and didnt realize my computer will not read sdhc. I read everywhere and it said you need a usb reader to read a sdhc on my computer (hp pav a810n) and I have the usb reader that came with my dstt but thats not working either..It works with my kingston micro sd..Should it be working with the sdhc or is the card a dud? I also tried to format it and it wont even bring up the format.