How do I change position of video floating window in IDCS5 PDF export?

Question

I have created an interactive document in InDesign CS5 (for Mac) that includes some movies. The page size is 1280 x 800 and the H264.mov files are 960 x 540 and 800x600. I place the movie in the center of the page at 100% size (without resizing either the movie object or the frame). The poster is set to None to keep it blank. In the PDF options, the Play Video in Floating Window box is checked, with the size set to 1x and the Position is set to Center by default but it is grayed out, with no option to change it.
When I export the document to PDF (Interactive) with both View and Layout set to Default and Buttons and Media set to Include All, the resulting PDF file opens the movie window in the upper right corner of the PDF document window. It does this whether viewing in Acrobat X Pro (10.1.2) or Acrobat Reader (9.5.0). I've tried opening the file on other computers and have the same issue. I've also created the same document in IDCS5.5 with the same outcome.
I'd like the movie to open in the center of the PDF document window. I've made other documents where it does this, but for the life of me can't figure out what I'm doing differently to cause the floating movie window to open in the upper right corner of the PDF document.
Any insight you could provide would be very helpful.
Thanks,
John

Answer 1

Thanks for your reply, Steve. I, too, believe there is a bug, but it's not in InDesign CS5, as I mentioned in my post, I was able to replicate the problem by opening the file in CS5.5 and exporting it to an interactive PDF. The movie again opens in the upper right corner.
However, if I create a NEW page in the document and place the same movie. it opens in the PDF reader centered in the page. I guess I could recreate the document if this is the only fix, but I thought that I may be doing something wrong, which apparently is not the case.
"Computers often do what you want them to, but they ALWAYS do what you tell them to."   —anonymous
"If you have placed the video in InDesign in it's own frame, should you not leave this box unchecked?"
Rik, I didn't actually place the movie into a new frame. What I meant to say was that once the movie was placed into the document, I did not resize it. I found that if I don't have the PDF viewer open the movie in a flaoting window, the movie quality suffers if the PDF viewer opens in a larger size than the original InDesign page size (which can happen depending on how the user's PDF viewer is configured). However, the movie plays and views perfectly if it is in a floating window.
jh