I installed 2013 sp0 on one of our machines recently.  Once open, the RAM usage of the "SOLIDWORKS.exe" process keeps increasing until the Solidworks Resource Monitor terminates it.  I can use it for about 3 - 5 minutes, or if I just let it sit without anything open the RAM usage keeps increasing.  Anyone have any idea why? 

System in question:

Lenovo W520, Win 7 Pro sp1

i7-2920XM

16 GB PC3-10600 RAM

2 GB Nvidia Quadro 2000M