Is there something I can do to avoid the multi-multi-nested URLs?

As far as I know, I'm not affirmatively doing anything to cause them...


2.2 GHz Intel Core 2 Duo MacBook w/ 2GB RAM, 160 GB HD, OS 10.6.4
2.8 GHz 27" Intel iMac with 4GB Ram, OS 10.6.4, 1 TB HD; 500 GB and 150GB external LaCie FW HD's
Airport Extreme + Airport Express + ethernet, cable broadband