Video Frames to Layers window issues

hi

im having this problem with the "File > Import > Video Frames to Layers" the box comes up like this:

as you can see the box is white, the file i have imported if MP4 and iv tryed this with 2 files now, and get the smae thing, iv also tryed ans mov file the which dose show a preview but it still showd the black bar at the bottom and no time bar and such

iv uninstalled the and reinstalled Photoshop and have the latest version of Quik time installed

it's Photshop CS5 that im useing running on 64bit windows 8, i was priviously runing 32bit windows 8 and and this worked fine, then upgraded to 64bit and now this problem has occoured

can some one help please