Bought a HP 3180 series printer and have spent hours trying to connect it. Have had various suggestions from HP support none of which have worked and yet it will load onto my laptop OK so is obviously a fault on my main PC? It loads as far as connecting to the USB port and recognising new hardware and I then get an error message, a large red cross on the diagram of the usb connection and it says it is unable to install it. The printer is working Ok, its just a problem with the USB somewhere. Have tried deleting all USB ports and reinstalling them, have removed all traces of old printer from the computer and removed anti virus and spyware but still no good. Has anyone got any ideas what it could be please?