Impressum » Has anyone encountered this problem at all?

Hello,

I've recently decided to try and build up a bike from scratch, with the idea being it'll be a good way to get my head around how a bike works in it's totality.

So, I bought a frame off this forum and am currently in the process of painting it up with spray cans.
I decided to try and go for a two-tone colour scheme with a black base and a white head tube and strip on the seat tube.
I did this by painting the white sections first, waiting a few days, then masking them off and doing the rest of the frame in black.
Now I've peeled the masking tape off it seems as though the tape has left an imprint in the white paint. Although it could be left over residue, but I'm not entirely sure.

Has anyone encountered this problem at all?
And any ideas of how to remedy it?

Please help.

I didn't find the right solution from the internet.

References:
http://www.bicycles.net.au/forums/viewtopic.php?t=62524
Infographics For Business

Thank you.