I'd also like the answer on this one. Reinstalled W7 x64 today and installed Ovi Suite a couple of hours later - And it still fails to find 3/4 drivers for the N900. Just got off the phone with Nokia Customer Care and to my <sarcasm>surprise</sarcasm> they had no clue why it wasn't working.

I know it was working perfectly about a half-year ago with Nokia PC Suite, the drivers were on Windows Update IIRC but now they are nowhere to be found

Supposedly Ovi 3.0 will resolve this but its nowhere to be found(being a beta and all).