I'm just now starting to play with filters & got myself in a bind.

After playing with the parameters for Pixel Smear on a solid black path & successfully exporting the .png image afterwards, the path turned white while I had another window open. If I remove the filter effect, the path returns to black, but if I add Pixel Smear again, it goes right back to white. In fact, it may even be transparent b/c when I put a dark rectangle behind the path to find it (& lowered the rectangle to the bottom of that layer), the path was still not visible, although I was able to click on it. Is there a way to reset the default settings for that filter? I haven't had any luck in the manuals, blogs, or forums so far. Thanks!!
~D~