3 Horizontal Lines

I’m searched for this problem and didn’t find anything, so sorry if this is a duplicate post.

I’ve got a blender file created and edited in 2.42a but rendering in that version causes all sorts of flicker. So, I rendered in 2.37a and got rid of the flicker, but now I have 3 horizontal lines. (see attached image) These lines show up if I render a frame, or a full sequence.

Anyone know what is causing this? TIA

Screenshot: http://www.squizzle.com/lines.png