I am running the new 1.1.2 64 bit version and it crashed when previewing a slice of http://www.thingiverse.com/thing:85656
The gcode file was 85 Megs slices with a .1mm resolution, I can upload to my webserver if you want to download the actual gcode I was previewing.
I am running a Core I7 3770K with 32gigs of Ram, I do have a slightly older video card though Nvidia GTX 260.