The screenshot show that the PDVD app is not in the maximize window. Simply click on the Maximize Button next to the x on the top right of the screen. Hitting Z on the keyboard is a shortcut toggle to do the same. Don't know the particulars on your PDVD settings. I beleive the H key toggle hides the pdvd controls on some versions. You might want to post your question in the PowerDVD forum if this did not help.
Let us know if this fixes the problem.
"PlaySound wrote: Did this PDVD-enabled zoom?"
I beleive that zoom is on other players and possibly some version of PDVD.