Why can i not see the time line and canvas? Also, why am i not able to click on them either?

Try selecting 'revert to original layout' in the window menu. If that doesn't help I would delete Motion preferences in ~/library/preferences/com.apple.motionapp.plist and com.apple.motionapp.LSSharedFileList.plist. You can also try deleting the layouts folder in ~/Library/Application Support//Motion. I assume that at some earlier time Motion was behaving properly. If this problem has occured when you first tried to open it after downloading then I'd reinstall it.

I have the same problem, just happen this morning after using it no problems yesterday. Tried reinstalling deleting all press and using digital rebellion housekeeping.

Revert to original layout is still greed out.

Thanks to all who try to help,

(M)

Found a solution here in another post after trying EVERYTHING...except for this:

https://discussions.apple.com/thread/4485032?tstart=0

(M)