Hello all, Last week I had my GTX 660 2GB OC die on me, and EVGA replaced the card for me. However, this new card seems rather strange. I keep getting graphical glitches under both OS X and Windows, specifically, my screens stop displaying new information, but my computer keeps playing video/audio whatever it's doing and won't accept new input. Often I can move the mouse around the screen, but can't click anything. Computer must be hard-rebooted. I initially thought that it was a Web Driver issue with OS X, but I've switched back to the native OS X drivers, and I just ran a Luxmark test on the GPU and got an output of 135. That's one hundred and thirty-five for a GTX 660 2GB OC. I've reseated the card, but the real question is, do I send this thing back with complaints of underperformance and have them replace it again? Or do I wait for more significant issues? I think I'm going to run some stress tests in Windows to see if it's just an OS X issue or whether the card is bad. Thanks for your input. -N EDIT: Ah, and within minutes of posting this, my system crashed, and will not boot back up. EVGA's Customer Service is of course closed for the weekend. Looks like I'm breaking out the old Geforce 405 for the next two weeks. Here we go again. EDIT: Everything seems fine with my Geforce 405. Only two displays, but I will live. I am wondering if my 3,1 is nuking the 660s, because I mean, what are the odds that I was sent a bum card? Obviously, the cards that take PCIe power only are fine, but is it possible that my 6 pin power cable is overloading the card or something to that extent?