Yep, no corruption problem at all with your site...

the tab problem is fixed - see the 'New Versions & Updating' forum

Has a solution ever been found to the CSS corruption issues for people filtering stream wrappers?
I've just tried 3.6.4 and it's totally unusable for us, it totally kills websites that were on 3.5.3.

Yes there is a solution, you need to add BFA to the Suhosin Whitelist. some hosts allow this to be done, some do not. see if you are getting blank page with Atahualpa 3.6.x (Suhosin issue)

Hello,
That's not the issue I'm talking about here (I'm the one that gave the suhosin solution a few posts earlier).
The problem is that this new way of using streams corrupts the CSS output (possibly more). It's as if the output is generated before it's ready. It leads to weird looking, incomplete pages.

I saw this on another site and am wondering if it is a PHP shared memory issue, where the wrappers are using the same chunk of memory. However I don't know that much about php installation options and am about to sign off for the weekend becuse my daughter is getting Married Saturday.

Congratulations!
It could have something to do with shared memory or APC... I'll look in that direction.