Yeah, I've also got several crashes in 2-3 days. I ran X1 on the same machine, and this was rock solid. I unistalled X1 prior to X2.
My crashes seem to occur when closing FXs in the FX bin but also on other occasions.
I have a dedicated desktop for my DAW:
Sonar X2 Producer (64 bit)
Windows 7 (64 bit)
Intel i7 3770K 3.5 GHz
16 GB RAM (1600Mhz)
256 GB SSD (OS/DAW/VSTs)
Sounds/samples/Projects on two dedicated HHD.
As several has reported crashes, I guess the team at CW will come with an update. I think they addressed issues like this quicker since the X1 release.