Need Help With Something So Simple It's Hard =)

[Mr. Blue]

I can't make a line grow =)

I tried creating a key frame, made a line, made another key frame lets say 5 frames later, just made the line longer, after that I created a motion tween, all that happened was that the line moved, but didn't grow. Think someone can help me with this? Thanks!

[oz]

you have to make the line a symbol.

[Sul]

Or you can make a shape tween without making it a symbol, but if it is not a vector images, break the bitmap apart before you shape tween.