I have a strange problem I do not understand.
I am working in Flash CS3.

When I do:
Control>Test Movie

I see my swf playing like it should, but when I go to open it later where it is stored...something odd happens:
Another swf file opens on top of it. If I try to close that other file, it closes both, so they seem to be connected.
In fact, when I try to open ANY swf on my computer, this same swf file opens on top of the swf file that should be there.
Does anyone have any idea why, or what I should do about it?
Here is another thing that may help--all of the files I am opening were created with action script 3.0 and the file that keeps popping up was created in action script 2.0.

Thanks for any help...