These both sound very much like hardware issues. Have you tried other operating systems with this hardware (including the USB wifi device) and gotten it to run?
Also, please submit separate bug reports for individual bugs; otherwise it makes it difficult to track them. ** Changed in: Ubuntu Status: Unconfirmed => Needs Info -- Bug loading ubuntu and with usb wireless https://launchpad.net/bugs/49089 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs