Switch/Hub question

Hi

Here is my scerario. I currently purchased an unmanaged switch to convert to from my 10meg hub. I plug in all the patch cords into the new switch and all my computers work except one. It will not connect to anything.(internet , shares, etc) However when i plug everything back into the hub that computer works just fine. I am thinking that i have a nic issue on that machine but I am not sure where to start.

Any help would be appreciated

Thanks
Dale