Weird problem with WGENS

[HaRuMaN]

I am using MAMEWAH as my frontend.  When I load a genesis game on WGENS, I don't get any picture, just a black screen, but there is game sound.  I press ESC, and then ESC again, and then I can see the game.

Now when I start playing, there will come a point where the screen gets 'stuck' and jiggley, but the game is continuing, in spite of this.  I have to press ESC twice to see where I actually am in the game.

Anyone experience this or know how to fix this problem?  I would greatly appreciate it.  I've been wanting to play Sonic 3, and its a little hard when the screen gets stuck and you can't see where sonic is going in the meantime.

Thanks,
Har 

[HaRuMaN]

Hmm...  turned tripplebuffer off, it fixed the problem.   odd

[Minwah]

If you're using MAMEWAH v1.6b?, set alt_launch_method to 1 in your emuname.ini file.  Oh, and also make sure you have show_dos_box yes.

[HaRuMaN]

I'm using 1.52

I turned show_dos_box to yes...
I don't see an alt_launch_method though