pkg_add is driving me NUTS!

[Remington L]

I have two servers, exact same hardware, exact same version of FreeBSD, in
this case 4.10. When I run pkg_add blah.tbz on one machine, it takes between
2-8 hours, on the other 8-10 minutes. These machines are quad-Intel
2.8Xeons, with 4GB of memory.

Ive done everything from running make world, to md5ing pkg_add, bzip2, and
tar, there identical.

I noticed on the one thing, on the machine that takes forever, bzip2 is only
using 1-3% load, while the other, which does work, takes 100%. I have SMP
compiled into the kernel, well actually, there both using the exact same
kernconf.

Anyone have ideas??