Problem with GPU rendering in cycles (2.70)

Hey guys,
I’m having a problem rendering whenever I try.
I made sure the GPU rendering was enabled is the User preferences.
I go to select GPU compute in the render window… Press F12, and nothing.
I’m on Windows 7 64-bit, with a Nvidia GeForce GTX 660 graphics card

It’s not letting me paste a Screenshot, it says it presents too many characters…

If there is a forum page that address this issue, please reply with that link.
Any help would be appreciated, thanks.

Your scene may exceed your cards capabilities. If you can post your scene, others can take a look.

I find Cycles produces blank/black renders when it runs out of video memory for texturing. How many textures are you using? And how big are they?

Well, I tried to do under a whole new file… With just a blank cube. It throws up this error: invalid value in cuMemAlloc(&device, pointer)

I have a 660gtx on Windows 7 64bit and it works fine. Do you have the correct nVidia drivers installed?

NOTE: You have to click the Go Advanced button (at the bottom of a post) to activate the browser to attach image files. I believe new users may have to wait for X number of posts before that button is made available. But I am not sure about that…

The Nvidia driver is up to date



So Blender has this issue with another user, so they made a 2.70a to fix this. Thanks for your help though