With the help of mr_tawan (see viewtopic.php?p=47094#p47094), we now have a potential fix for the problem with makehuman not starting or being empty after start, particularly on AMD graphics cards. Whether this fixes the problem for everyone remains to be seen.
Because of this, there is now a specific build available for windows. This is basically alpha 2 plus some fixes, including the above graphics card fix. You can download it at http://download.tuxfamily.org/makehuman ... -win32.zip.
It would be very helpful if you tested this and reported back. Both reports of "it worked" and "it did not work" are interesting, particularly if you also add information about your graphics card. Even if alpha 2 worked just fine for you, it would be nice to have this build tested too, in order to ensure we didn't break anything.
If the feedback for this build is positive, we'll wrap up this fix and a bunch of other fixes on the roadmap, and forge ahead with alpha 3 in the near future.