Repeating colored background in Adobe CS5....why ????

Question

OK, I have a very interesting question for you experts out there:
After doing a blue-screen shot, I wanted to put just a flat color as the background and fade from one color to the next as the subject acts in front of the blue-screen.
I made the colors in Adobe Photoshop using an old image and just painting it over with whatever color I want.  After making several, I went to add them as the background in Adobe CS5 and it worked fine.
The problem I encountered is this:  When I put the first color background in (let's say brown), then I go to add another colored background from the same source file where I stored all the different backgrounds, it keeps bringing up the "brown" background again.  It says it's the "pink" background, but it shows brown and drags into the scene as brown.  No matter what I do, even putting the original brown background into a different source file, it keeps bringing up the brown one again and again.
Very strange dilema, and I have no idea how to solve it.
Do any of you guys know what the problem is?  Have any of you run into this kind of thing before?  Is there a solution?
It can't be the computer or CS5 'cause they're both brand new, so it's obviously ME not knowing what the hell I'm doing......
Thanks for any help and advise.

Answer 1

I have not seen an issue with JPEG's, BUT... I seldom use them, and I do not have CS5 installed yet. As Colin mentions, there does seem to be a glitch (?) with some JPEG's.
Glad that the TIFF's work for you. When doing almost anything in PS, that will go to Video, I keep the format PSD, and will either Import as Footage, if I don't care about my Layers (this will Flatten the Layers), or as a Sequence, should I want the Layers. In the workflow that you outline, I'd probably create the one Image (good move to set this up per the Frame Size of the Project, BTW), and just do a Layer for each "background." Then, I'd Import as a Sequence, and just drag each Layer to the main Sequence, as needed.
The suggestion to use Color Mattes is also a good one, though if one wants a different look, than just a flat color, PS can allow all sorts of creative functions/Filters to alter that color from "plain-vanilla" to something "other worldly."
Good luck, and thanks for reporting that the TIFF's work for you!
Hunt