PCOPY use with hardware and software images

[DSMan195276]

After thinking about this a while I believe it is due to the fact that pages above 0 do not retain the _RGBA(0,0,0,0) transparent color. I forgot that the hardware layer and software layer are completely independent of each other.

Yep, I was just about to respond with that The `_PUTIMAGE` with hardware images doesn't care what the active or display page is, so even though your `PCOPY`s are wiping out the whole screen the hardware images still appear anyway when the screen gets rendered during `_Display`.

If you move one of the `_PutImage` calls with the hardware image out of the loop and just retain the `PCOPY` you can see that the page is actually blank.