shifting .gif colors

[Blaine Hackett]

All

I have a mapserver app showing roads, counties, road
symbols, text, etc.

When I zoom in or out, I get odd looking color
changes mostly for the symbols.  What is supposed to
be red might show up as a different color, many times
dull green or brown, until I zoom in and then it is
turns red.

I am using .gifs. I imagine it has to do with web safe
colors but am not sure how to fix it and have found no
answers on the web. Anyone have any suggestions on how
I might go about fixing this?

Thanks
Blaine



__________________________________
Do you Yahoo!?
Yahoo! Mail - now with 250MB free storage. Learn more.
http://info.mail.yahoo.com/mail_250