what you may have, depending on where you are connecting, is a power shortage. under the heading, 'Unreliable USB Ports' in pcworld april 2001 issue, i found this....
******************************** "A USB port doesn't just connect the PC to peripherals, it also delivers electricity to power them. Some USB ports, like those on a PC or on the base of a monitor, are self-powered and can easily run USB devices. But ports with no power source of their own, including those on a keyboard, provide less power.
Adding an item with limited power requirements, such as a mouse, usually doesn't pose a problem. But power-hungry USB devices, such as speakers and scanners, can cause an overload--or sometimes even shut down the entire USB port. You have two choices: Either connect the power-hungry peripheral to a self-powered port (like one on a computer), or invest in a multiple-port, self-powered hub like the $80 Belkin BusStation." ********************************
pcworld.com |