My graph colors are ignored!

I have an SSRS report that contains 4 bar charts. In the properties for
each chart I set the graph palette to "excel", and when I click on
preview to see the report, I get exactly the colours i wanted in the
report.
However, when I upload the rdl file to the report server, it seems to
ignore these colours! For the first chart, it does use the excel
palette, but the other charts all use a different palette, and no
matter what color palette I choose, they are completely ignored in the
report!! I have tried deleting the report from the report server and
uploading it again, but no joy.
Can anyone help? Is this a bug with SSRS report server? We are using
the 2000 version.
Many thanks.
Frustrated SSRS charter.I sorted it myself!
I removed all traces of "color" settings from the rdl, and moved the
charts around a bit, and that seemed to do the trick.
Weird!