I Bought a Logitech USB mouse and now mouse look won't work. The cursor still moves with both my laptops touch pad and the USB mouse, but even after cycling through shift+m multiple times and setting mouse look as default, it will not engage. I unplugged the USB mouse and restarted and it still won't go into mouse look. I didn't install any software with the mouse, otherwise I would have already removed it. I'm stumped and having a hard time flying without mouse look

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Edited*
Oh yea, thats with Vista 32, Sony Vaio Laptop,2.0G Dual Core, 3 Gb Ram, Nvidia GeForce Go 7400 w/ 64Mb DDR