USB ports are detected when Knoppix boots from the CD in the kinfocenter, but after doing a hard drive installation, USB ports are not recognized in the kinfocenter. However, during the HD boot during the verbose mode, I notice that it says "USB hub found, 2 ports" which is exactly what I have on this computer. Plus, other sections of the kinfocenter indicate IRQ assignment and the pci section mentions usb also. If you are able to offer help, please be specific because I am new to this. Thanks in advance.