My wife was working on the dotphoto.com website that used Flash. She did something that made it so that when we try to play a Show (dotphoto/s name for a slideshow) we just get a black screen. She did this on her MAC desktop machine (G5 iMac with OS 105.8). I tried to play the Show on my MAc Book Pro (Intel) with OS 10.5.8 and I now have the same problem on my machine.
The desktop machine only has Flash Player. The labtop has Flash CS3 Pro. I also realized that now when i download a .flv file from youtube to my laptop, it no longer will play in Flash, although i can play it in Quicktime with Perian plugin. I have downloaded Flash Player CS5 and I still can't play the .flv files, that used to play fine.
Any idea what could have gone wrong. Is there a preference or cache file that I could delete to see if it resets the software. Is there a way that I can download a clean version of Flash 9.0 and load it over the one that is already installed in order to reset it?