Ok, what we are going to try is clearing some of the IRQ's. Make sure you read this all and follow it step by step.
First off, try unplugging the camera from the USB port. If that doesn't work, then follow the following. You may want to print these directions out.
IRQ Conflicts with USB
Despite information to the contrary, USB does NOT like to share its IRQ with another device, (IRQ Holder for PCI Steering is not considered another device).
If USB is sharing its IRQ with Audio, Video, NIC or Modem you will very likely have problems with USB. (All OS except WinXP)
Free as many IRQs as possible in the BIOS. A good place to start is COM1 and/or COM2 if you have no external serial device attached to your computer. (i.e Serial Mouse or Digital Camera) If you are using a USB printer you can also Disable the Parallel port.
After disabling devices in the BIOS, you must boot into Windows Safe Mode and delete the device from the Windows Device Manager (Win95-Win2000). If the device is not removed from the Windows Device Manager while in Safe Mode, Windows will continue to recognize the device and assign it an IRQ.
Moving peripheral cards to other available slots is also an effective method of resolving IRQ conflicts. Each PCI slot is assigned an IRQ by Default. Some PCI slots share an IRQ with USB. Avoid those slots. Check the Mainboard Owners Manual for this information and use it as a guide to avoid IRQ conflicts.
If freeing IRQs in the BIOS does not produce the desired result you can manually assign an IRQ for a conflicting device in the Windows Device Manager while in Safe Mode. If manually assigning IRQs you will need to Disable Plug and Play OS in the BIOS, otherwise Windows will continue to override the BIOS assignments. If the OS is installed in ACPI mode, IRQs assigned in the BIOS will be ignored by the Operating System.
If you still cannot isolate USB to its own IRQ, changing the I/O range of USB sometimes works.
Step-by-Step / William DeVercelly
1. Boot to BIOS setup and disable ACPI
2. Go to the "Integrated Peripherals" section and disable both serial ports if you are not using them.
3. Go to the "PnP/PCI" section and disable "PnP OS", "Auto" and "Reset Configuration Data (aka ESCD Update)". The last is a momentary switch and will be disabled each time you return here. It releases the BIOS lock on IRQs and lets Windows take over.
4. Go to the Power Management section and disable all BIOS control of power management.
5. Boot DIRECTLY to Windows Safe Mode. Remove all USB software in Add/Remove Programs. Open Device Manager. Remove the USB root hub and host controller *in that order*. Remove all USB drivers. Look for duplicate or erroneous drivers and *remove them all*. Windows will reinstall genuine devices.
6. If you have any SB16 emulation drivers, disable them in the hardware profile (do not remove). These are DOS sound drivers and most don't need them.
7. While still in Safe Mode, go to System Devices and disable Advanced Power Management support.
8. Lastly, remove the drivers for sharing devices. Windows should reinstall the drivers automatically.
Unplug all USB devices except USB Keyboard or Mouse before rebooting to Windows Standard Mode.
At this point you have freed up 2 or 3 IRQs and reset Windows IRQ assignments. You can reboot and reinstall your devices *as per manufacturer's instructions*.