I have had major problems navigating this site sometimes. As many as 7 out of 8 attempts to navigate (from one post to another) have resulted in some variation of "internal service error." I keep trying, and keep getting the same result.

I've run "control tests" to see if it's either my computer or that particular open window, and gone to other url's and navigated just fine. Then I come back here and can't navigate.

This happens maybe 1/4 of the total times I'm here. Some days I've given up because it's just too much effort. Sometimes it happens within the span of 30-45 minutes, and then works just fine.