I shoot in RAW, and 3.4.4 doesn't seem to process .nef RAWs from my D300 correctly. The images are consistently turning a couple to several stops darker. The odd thing is that 2.1.4 seems to get them right.
I have both 3.4.4 and 2.1.4 on my computer, as Aperture 3 still cannot update my 2.1.4 library correctly so I still have 2.1.4 on my system, but that's a different topic (Apple engineering has allegedly been working on that issue for about 2 months . . .).
Thanks for any suggestions for a fix or work around.