Please help, I have a killer setup.

SW2012 x64 Premium SP0.0

Running on my Dell M6600

Win 7, 64bit

16 GB Ram

Intel i7-2760QM 2.4GHz

Nvidia Quadro 5010M 4GB

I am trying to save a big-ish file as a step file, and it crashes saying out of memory.  Resource monitor says its under 1GB before it crashes.

I have never had this issue before today...I have had this setup for >6mo.

I recently (yesterday) updated all my graphics card drivers to resolve another issue resulting from windows update.

Please help, I was under the impression this shouldn't happen in windows 7 with this much RAM