Same deal here. I sent Apogee all my logs a couple weeks ago. They had the same suggestion--remove 2G of my 4G of RAM.
I don't want to do that, so I've been working on my Fireface 800 in the meantime (now I'm glad I didn't sell it).
Funny thing is, today I switched back to the Ensemble for some probably futile troubleshooting. Damn, I couldn't get a kernel panic if I tried--opening and closing Nuendo and other programs, changing the sample rate--things that usually cause the Gray Curtain of Panic to descend. So, I started sketching out some ideas for new piece. Silly me--thought I was home free. Closed Nuendo when I went out for a while.
Restarted Nuendo, and the Gray Curtain descended on my project like a random reminder from Hell telling me who's the boss.
$2,000. I am really, ah, disenchanted, with the whole situation. (I would never say "pissed off" in a public forum. tutt)
Regards,
Bill