I downloaded 6.1.6, so far im doing ok with it... but I just downloaded the latest beta and installed in a separate dir and tried to install it. I wanted to play with the beta before finishing 6.1.6 to see the diff. When its checking permissions, it says ffmpeg.exe is unexecutable. Now I know it must be executable because I have 6.1.6 installed with no issues. What am I doing wrong?