Flash 8 or 9 Publishing error after Flash9 installation

Hi.

I had my dear Flash 8 installed and everything was working fine till I decided to install the Adobe Lab’s Flash 9 AS3 Preview Alpha.

Since then, inside Flash, every time I publish a movie and do “ctrl+Enter” 2 times to simulate download, it gives me some kind of error, not showing the contents and stopping the movie without any kind of warning.

I already uninstalled the Flash and the Flash Players, reinstalled everything and still nothing.

Can anybody hel me with this problem? I had some urgency on solving this.

Tks in advance