Here is video from Linus tech tips that may be of interest to people having PD crash when rendering. Also here is the link to the tool he talks about to allow your computer to access more than 2gig of ram. This was a major problem I had when running 32 bit windows. All would be fine doing simple videos but as soon as the complexity rose it would crash due to out of memory.
I know it talks about a Sony product but if it helps the many people on here complaining about their render stopping at 28% etc it is worth it.
http://ntcore.com/4gb_patch.php
http://www.youtube.com/watch?v=kc6Rbel6n1g&feature=digest_sat
As with all advice use at your own risk.
Cheers
Robert2 S
My youtube channel====> http://www.youtube.com/user/relate2?feature=mhsn