gdchart problem

[Ian L]

i just installed gdchart http://www.fred.net/brv/chart/ along with the
python interface.

I've gotten it to work, sort of. When i run my file from the command line,
it works fine. If i then try to run the same file from a web browser, it
doesnt work. Or rather, the code on the page executes without any errors.
But it doesnt generate the image.

I assume this is a permission problem. I've tried giving full permissions to
both the file and directory, but it still only works when i run it from the
command line.

can anyone give me some suggestions as to what i could check to get it
working from the browser?