i'm at home now, my blog is still visible, & my mime-type is still "text/html".
all i did was move up my meta tags to the top of the head section (as opposed to being at the bottom of the head, underneath all my link, script, & style tags). could that have been the cure?
i won't really know until at least tomorrow morn, but so far this is promising. even if that wasn't the fix, i'm still glad i updated the template because now it's cleaner as well as RSS-enabled.