Anybody got any tips on ImageMagick?

From a customer who is seeing tons of data in an ImageMagick directory:
"While the instance was in progress, I looked for `imag` in the process list, and was unable to locate any processes with that name.

I can only assume that ImageMagick is being launched by the apache2 threads, but when I looked at both of the php.ini files on the system, there are no extensions being load at all, including ImageMagick.

Might there be another way ImageMagick is being called?"