If i use a mesh with an emissive i still have weird lines everywhere that doesn't appear with Blender render:

Thank you for the clarification. And yes if I set the image to Raw i see it displayed linearly but when i save it it's converted in sRGB i don't know why. Also if I bake in Raw and switch the color space and go back to raw it's displayed like the sRGB version.

It's solved i can bake in the 2.77 rc1.

When i use the OPENGL32.dll Blender doesn't launch.

I use Blender 2.77 testbuild 2 and i have also tried the latest build on build bot and it crashes too.
I have tested on my computer on Windows and unplugged my GTX 570 to put the HD 5770 and it crashes too. I use the CPU baking i don't use OpenCL.

Yes it works fine in the latest build.

With the Add mode it's another problem, we can use multiple motion input, but the mouse movement actuator glitch, the forward face change when i use it to rotate the object.