Why can't I turn on Open GL Texture view and see image maps in Open GL?

[TechImageMan]

Why can't I turn on Open GL Texture view and see image maps in Open GL in Layout?

Pressed 'D', and Open GL texture view is turned on.
Texture view selected in view port.
Texture is visible in render, and in Viper.
Using v9b, and a 1 month old PC (can't remember what the graphics card is, but it's a new NVidia card)

Am I overlooking something obvious?

Is my 73MB image map too large for the hardware, perhaps?

I can see gradients in the OpenGL view.

Any help appreciated thanks.
Paul

[supportron5000]

It could be a few things; if you've got a new graphics card it's possible that you have the onboard memory for it (an uncompressed 73MB image alone should be able to show up with 256MB memory).

Check to see what the uncompressed size on the image itself is in the Image Editor. If it's 73MB on your HD and is a .jpg it'll be much larger uncompressed, most image formats (like .jpg for example) are compressed to fit on your HD, but when you open them they all uncompress to 24 or 32 bit images in memory. Image Editor will say what size it is uncompressed, a good idea to know how large an uncompressed file is would be to save it as a bitmap and check out the size it is on the disk as that's what all images end up as in memory.

Also try other, smaller textures and see if they show up, if they do then the image itself is just too large and your graphics card can't render it in real-time. If you have alpha on the image you could try turning off alpha and that could at least give you a good idea of what you're working with, if not you could always save out a low-resolution copy of the image and use it as a guide.

Other than that try checking to see if Color Channel is turned on in the OpenGL settings.