I'm a new user of Photoshop. On the PC I have elements and on the Mac
I have CS. I'd rather work on the PC if possible.

What I'd like to do is create a gradiant and set an opacity for that.
Target use is the web and this would be PNG24. I see that there is a
transparency option in the "save for web" dialog. But it is always
grayed out. I've tried the "foreground to transparent" option on the
gradient and then I tried everything else I could think of.

I'm sure there is something simple I'm missing. What do I need to do?

Jeff