Constant Hardware Connect/Disconnect sound

I just installed Windows 7 Ultimate x64 RTM. Every few seconds I get a Device Connect sound, then a Device Disconnect sound...over and over again every few seconds. I am trying to figure out what piece of hardware it is and not having any luck. Any ideas...?

Does anyone know if there is any kind of log in Windows 7 that tracks device connect/disconnects? I have unplugged every single peripheral on my machine, including my keyboard and mouse, and something is still triggering the device connect/disconnect event. I am starting to wonder if it's some kind of problem with my Intel chipset drivers. I have a Gigabyte GA-EP45T-UD3R motherboard with the Intel P45 + ICH10R Chipset. The Gigabyte website says this board is Windows 7 certified. The chipset drivers installed automatically with Windows 7. I am running a QX9650 core 2 extreme cpu and 4 gb of DDR3 memory. I have an nVidia GTX295 video card and a creative sound blaster PCI Express X-Fi Titanium Fatality Pro sound card; onboard sound is disabled through the BIOS.

I have actively monitored the Device Manager and can see that it's refreshing every time I hear the device connect/disconnect sound, but I don't see any devices appearing or disappearing in the list...

So frustrating!!!

I found the culprit. In Device Manager, under Universal Serial Bus controllers, there is 1 Generic USB Hub after the disconnect event, then there are two after the connect event. There is one Generic USB Hub that is connecting and disconnecting. I disabled it and that resolved the issue. Going to work on identifying exactly what it is...probably one of my case front panel USB hubs...

My mouse stops working and then I hear a device disconnecting. After the disconnect sound, the mouse works again. This goes on again and again over the course of my computing. I too have disconnected all the USB devices NOT connected directly to the computer, but nothing has yet helped. I do not see any changes within the USB Controllers.

In the Human Interface devices, there were 6 entries. When the mouse froze all but two USB Input devices disappeared. I deleted one of the two USB Input devices and the HID-compliant devices never came back. Later on the HID-compliant consumer control came back. They disappear when the mouse freezes.

This stuff is beyond my level of understanding. If someone could help me, it would be greatly appreciated!