I am running Ubuntu 10.4 and ran apt-get to install C::B (version 8.02). I have a fairly small project open and I leave it open for quite some time. After a few hours, the CPU usage for C::B starts to spike. I think it gets as high as 80%. The CPU usage goes down if I simply switch to C::B, but still down only to about 9%. It's a fairly modern dual core laptop.
What can I do to keep C::B from using so much CPU? What could it be doing to use so much CPU?