Why I cant save swf (flesh movie file) on comstudio

I push on play on the ComStudio- its opne a frame- I muve the frame-
& stop- an window open to save the file- but pressing on save do nothing- I can close the the window only if CANCEL...???
Thanks
amir

Download and install the Version 2.6 Beta from the link at the bottom of the page here:

http://camstudio.org/