Strange artifacts in video

Hello everyone. I am having a strange problem which my Art Director can't seem to help me with. I'm working on a corporate video and at certain points in the video I want to transition to another scene using a insert wipe (starting from the upper left corner). The wipe works fine, what is causing all the problems is I'm trying to overlay a black crosshair pattern that moves along with the wipe. Whenever I try it I get these funky white lines on either side of my black lines and the effect looks like ****. I've gone back and looked at the graphic file and there is no white anywhere. I've tried saving the ping in both Interlace & Noninterlace nothing works. The funny thing is I've done this trick before & it seemed to work fine, but in that case I was using a white crosshair pattern. Any thoughts or suggestions? Thanks in advance.

Been there
I did a great effect on my AVID using a large black box with three square cut outs that slid accross the image and made it look like three windows all synced floating on the screen.
I tried to do the same thing on FCP to find those same white lines on the inside of my alpha box. I got it to look a little better after tryng deinterlace, flicker filter and blur, but no where near as good as it looked on the AVID.
I wish I could give you some great tip to make it look good, but I struggled with it for 2 days and could not get it looking perfectly clean.

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Quote from: barkmann on 08-October-11, 06:18:31
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[IMG]http://img208.imageshack.us/img208/3420/acr36qx8.jpg[/IMG]
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