GreyLord
Legend
That might even be the issue with replay, last time I checked Flash did not support x64 IE. That was a year or so ago (when my wife tried it and i had her on x64).
Flash works fine with IE64, BUT some 32 bit files do not. Most networks are updated so that you can watch what you want in IE64 (youtube, etc.), but those which haven't may have problems. IE64 does require you to change some default settings as long as you authorize applications to run, gives more security against things that you don't want running, but it will run them as long as you authorize it to run.
Bigger problems seem to come into it with the 64 bit processor (games won't run, graphics won't display right...etc). That's made me try finding a computer with a 32 bit processor that may still be on the market to tell the truth, but they are becoming impossible to find.