Emulator

Black textures in Metroid Prime with EFB to texture.

What steps will reproduce the problem?

1. Play Metroid Prime with EFB copy to GL texture
2. After some time you should see black textures.
   (Sometimes this issue does not happen very often
   and sometimes this issue happens very often in row.)

What is the expected output? What do you see instead?
The expected output is the correct texture.
Instead I only see black textures.
http://img12.abload.de/img/65m2y.png
http://img12.abload.de/img/65m2y.png
Rarely there are also pictures within
the black textures:
http://www.abload.de/img/blacktextureffli.jpg
http://www.abload.de/img/blackmhys.jpg

Dolphin version with the problem?
All versions have the problem.

Please provide any additional information below.
There are severall ways to reload the right textures while ingame:

1. Change EFBtoTexture to EFBtoRam and the back to EFBtoTexture
2. Press Z-button resp. open the map
3. Make savestate with Shift+F1/F2/F3...
4. Enable Overlay texture format and disable it
5. and so on...

32-bit or 64-bit and any other build parameters?
I´m using Vista x64 with Dolphin x64