Quicktime movies do not work, please help me

Question

Hello friends. I have a problem that is absolutely driving me crazy. I belong to a popular pay site that has quicktime videos. I used to use the site and watched the videos, even though I have to use stupid dial-up because I live in the sticks, the videos worked, though they loaded slowly. After an absence for a half year or so, and after upgrading to Quicktime 7 (7.0.3), I rejoined the site and found the videos no longer worked for me (except for, mysteriously, maybe once or twice, I don't know why). I asked on their forums if anyone else had the problem, and I couldn't find anyone that did. I asked their help line and couldn't get any good information either. Finally, a nice person from their site phoned me and tried to help me personally with the problem, and he couldn't figure it out either. This man is a serious Mac user and programmer and he was stymmied. We tried all the QT settings and messed with the keychain settings, but nothing worked. Well, I did get a video to play once by changing the key chain settings, but then it went back to not working again after that.
Specifically, here's what happens: when I click on a link to open a video, the QT player comes up, but it's in the small screen with only the time window and the buttons, not the video. Then.... nothing, that's it.
The man I spoke with confirmed my suspicions that maybe there was something wrong with my system (I did reinstall QT several times, which didn't help.) I went out and bought OSX.4 and installed it, which was not easy because there was a problem and I had to do a clean install, erasing everything on my hard drive and starting over. I was sure that would solve the problem, but NOOOOO, it still does exactly the same thing.
This is not some shady website I'm dealing with, it's a popular, rather expensive (for me, anyway) pay site with many happy members. And one extremely frustrated one.
Thanks for any suggestions you can come up with. Maybe a setting I've overlooked? Anything at all?

Answer 1

Ok, maybe I can jog someone's memory just a bit, maybe I can get some help on this. I tried using my laptop with the website videos, with the same result, just either blank video screen or the small screen with nothing but controls and time bar. Then I took the laptop to a friend's house and tried it on her wireless system and it worked fine. I came home, tried it here again and it didn't work. I know it would take longer, but it should work here on my dial-up connection. It used to work, before I upgraded to Quicktime 7, and the people at the website say that it should work too. They don't know of anyone else with this problem. I've tried changing my quicktime preferences but that has no effect.
Any more ideas? Thanks again.