Windows 7 doesn't pickup Mbox Pro 3rd Gen.

[showerscene]

Hey, so I recently installed Protools 10.3.10 and the Mbox Pro 3 drivers (1.1.8, the drivers the installation pack came with), and it was all running fine. However, this was until the audio started cutting out, resulting in having to change the buffer size every 10 minutes or so. All of a sudden, the Mbox started dropping out (disconnected from PC, Blue power light starts to flash), so I have to quit PT10 and reboot my Mbox and launch up PT10 over and over and over again. Then it suddenly got a lot worse, the drop outs being more frequent. I tried updating to the latest drivers (1.1.10), which resulted in the Mbox not being recognized by Windows 7 at all, as though it isnt even plugged in into the FireWire port. What should I do? I've tried a lot of things, such as:

- Updating to the latest drivers (which I stated)

- Uninstalling the New drivers, and reinstalling the old 1.1.8 drivers.

- Changing the Plug and Play and Legacy settings in BIOS in startup.

I plugged the Mbox into my old HP laptop which is running Protools 10 and Mbox drivers 1.1.8 and it works fine. Any suggestions on what I should do?? I've been recording heaps and I need to finish these tracks. Help me!!