I am unable to get the down arrow control when viewing video clips on
websites even though I have registered my pro key.  I have tried the
Quick Time site with the same results.  The online help does not deal
with this problem.

Hello glimmer-ga,
.
1. Check you have registered your pro key correctly by going to the
Quicktime Plug in settings > registration. Here you should find the
key entered and the word 'pro' next to your player version if it has
been upgraded correctly to pro status.
2. Due to copyright issues, not all movies are downloadable.
The movie is only downloadable if the creator of the movie has not
protected it.
3. If you go to this page Apple PR page, you will be able to download
this movie as it is not download protected.
http://www.apple.com/switch/ads/aaronadams.html
4. The movies are usually set to stream and play before the download
is finished, so you cannot save the movie even when it starts playing
until the full download has been completed.
5. Check you don't have multiple copies of quicktime plug-in installed
in different browsers. Although you may have the pro plug-in installed
in say Netscape, I'm not sure if you can download with Explorer with
an older non pro plug-in.
6. If you are new to using Macintosh you have to ensure you hold the
key down long enough before the arrow menu pops up, if you are new to
PC, you have to right click.
7. If all the above doesn't work I would suggest a complete fresh
install with the Apple Quicktime installer, and re-enter the quicktime
pro key, as some files may have been corrupted.
hope that helps,

regards
lot-ga

What OS are you using? What version of QuickTime Pro? If it's MacOS,
do you have old extensions or plugins that need to be removed or
replaced? This information might help a researcher find the answer.
 
If you are trying to download a file that your plugin sees, read on
for my two cents: you might have to wait until the movie is finished
downloading to get that arrow, but I'm not sure. Also, I believe there
are HTML tags that web sites can add to prevent QuickTime from letting
you download the file. I know this is true with QuickTime non-Pro, but
I don't know if it is also true for QuickTime Pro. Good luck.

Thanks for your interest.  I am using Quick Time Pro version 5 with the windows OS.