Delta_V

Has anyone had any issues with crashes caused by the radiators? I've tried two different designs (both with the stock LV-N) and the largest deployable radiators and I get crashes at the same point with both designs. I know its something to do with the radiators because if I don't deploy them or if I deploy them but deactivate them I don't have any issues. Its only if I activate them and then they heat up for about 30 seconds or so and then KSP crashes. KSP doesn't appear to be generating an error log either...a couple of times its crashed straight to the desktop with no warning. I've got other mods installed but both my spacecraft that I've attempted this were totally stock except for the radiators and Nerta's solar panels. I've checked my RAM as well and I'm clocking in at about 2.6 gigs so I'm not running out of RAM.