Nikkor 35mm/2 BIG exposure-problems!

Hi!

Three weeks ago I bought the nikkor 35mm/f2.0 AFd for my Nikon D3. Its a focal-length that I have missed for several years and Im loving it, exept for one thing:

EXPOSURE! When using in P-mode it works perfectly, no matter the lighting situation (exept for the choice of f8 at all times :))

But when I put it in Av-mode and choose the aperture the camera compensates for straight light (straight into the camera) and always overexpose, and it does not matter if I put it on -1 step in the exposure-compensation..

Its really makes me sad.. It must be a software issue.. Is there a new update after the 2.01?

Grateful for all help I can get.

Thankyou!