PS Bridge Camera

I can't say that I am a complete newbie with DAZ but I am still learning.
I'm having a problem with the PS Bridge camera function. I can't seem to get the background to render as transparent, so I can cobble my renderings together in Photoshop. Or I am doing something wrong?
I searched thru the forums but didn't find an answer -- although I didn't go back further than a couple of months.
Advice and/or directions to a walk thru/guide would be appreciated.
Comments
If you want a transparent background, you will have to render as PNG, JPEG does not have an Apha (transparency) channel.
I could swear I tried that...but maybe not. I'll try it again. Thanks