I just tried it again, after reading this (power and home) and it worked!
I don't know how or why and apparently my phone which says 4.0.4) is a ginverbread (which is fine with me, I've never had one before and didn't know anything about them) I just tried it again and the task manager comes up. It must be something in the timing. I had tried this many times before, trying to time it just so, like exactly together, or a little apart, and it only worked once (when I tried it after writing this) Sometimes the menu to shut it off comes up. when I take the pictures off my phone I see a folder that says 'screen capture' (empty) so know there's a way LOL
Thanks for taking the tme to answer and now I know which way to keep trying to to it.