Well just FYI, 64bit drivers are normally different than 32bit drivers so the fact it works on your netbook does not mean it will work in 64-bit (without 32-bit emulation such as a virtual environment).
That being said, supposedly 64-bit is supported with the
HP officejet 4500 drivers. Are you using the driver dated 2010-03-01 , Version:13.0.0? And are you trying the basic driver, enterprise, or full feature package?
Also, are you sure your USB port is correct, right version, works with other devices? have you tried a different usb slot? is it the same usb cable that works with the netbook (otherwise I would offer that it can also be a cable problem)?