Change default rendering mode?

[chibale]

I install Windows 7 Beta 7022, then BSPlayer Pro 2.35.
I then install the K-lite Codec Pack, primarily so that I can play .mov with BSPlayer.

This worked well with XP and Vista.

But for some reason, video doesn't work (audio does). So I change the video rendering in BSPlayer (options>video,etc) to say, EVR or VMR9, &close options. Then I reopen the video from BSplayer, and it video works.

Unfortunately, every time I close out of BSplayer and reopen a video, the black screen is back. It's back to "internal renderer overlay (default)". So I then change the rendering mode as above and it works...

Any advise/suggestions? Any way to make the setting stick, maybe? Am I doing something wrong?