Windows 7: Display turns off with middle button scroll

[fafaforza]

So I'm playing around with Windows 7 on my T61. I installed video drivers from Lenovo's site and the pointer drivers from Synaptics's website. When I try to scroll with the middle the display turns off. I can see the page scroll a few lines then the screen fades.

I checked Windows' key shortcuts, I didn't see anything in Nvidia's key combos in its control panel. Does anyone have otherp laces where I could look? Seems like that combination has dual functions assigned to it as it still scrolls and I see the scroll rectangle, then it fades away.