Getting black windows if they are hardware rendered

Hi!

I have a machine that when i detach the screen cable does not want to render in logmein client using its hardware rendering (and thus rendering is super slow). Moreover certain windows (like visual studio) who are normally rendered using direct3d/opengl surfaces turns up totally black.

However; there is NO issue whatsoever when I use Remote Desktop to the exact same machine, then everything works perfectly and is super smooth. RD uses hardware rendering.  But I want to be able to connect using logmein. I tried disabling HW render in the logmein preferences/general but that won't help the black windows in visual studio.

Any idea?