As far as I can tell, this is happening only in Firefox, not IE or Chrome. A picture's worth a thousand words, so here's the deal.
The same thing happened yesterday with my blog and commenst. Now, the blog entries seem ok. The comments themselves have come back, but they weren't visible at lunchtime. This is what the page should look like . Here you can see that black has been substituted farther down the page for the normal color. From time to time, the page behind the comments turns black, as with the example I showed above.
The footer has changed also and isn't readable.
I'm completely flummoxed. Everything else seems to be working fine. It's only that the backgrounds keep changing color, making the text unreadable. I'm running updated Firefox with no extensions or addons. Everything is up to date, I've cleared my cache, re-booted and so on.
Any help you could offer would be deeply, deeply appreciated. ;)
The blog I need help with is shoreacres.wordpress.com.