I had one when I had my A4000. I don't recall there being a scan doubler built in to the card. I believe there was a module you could by to add one to the card.
Edit: Hmmm. A few minutes googling show that the flicker fixer is a standard included addon card. I'm fairly sure the one I had, it's been 6 years, did not have anything connected to the main Picasso card. I did have a Diamond Scan monitor at the time so it wasn't an issue.
Maybe it is my old card. Gotta wonder sometime what happens to your old hardware...
Edit: ah, old failing memory... It passed out the standard
amiga video connector on the back to this then out the Picasso card video connector, right? If so, then yeah, it had it.
