3.3.1006 has a serious flaw that affects those unfortunate Windows users with a particular type of faulty OpenGL drivers.
crashes immediately upon starting, regardless of the .ini file OpenGL setting and/or the command parameter -no_opengl.
There is no effective workaround in 3.3.1006.
These faulty OpenGL drivers seem to be relatively rare in the field, but have plagued us for some time. We have implemented identification/quarantine code in 3.3.1006 for these drivers. This code has faults and is not fully effective in 3.3.1006, but we have a solution that will be effective for the next Beta.
We will publish a new Beta within a few weeks to correct this and other problems. Meanwhile, Windows users affected by this bug, and who are able to build OpenCPN from source, may find the fix available on github now, as Version 3.3.1009.
Sorry for the difficulties.