That shouldn't happen, sounds like a <center> somewhere not closed on top of the page and that is trickling down to the posts.
I checked the sites of both of you and when I removed the inline "text-align: left" or "text-align: justfy" (pwcomp) styles of paragraphs, the text would be left aligned.
Please post a specific post or page where this happen and point out which text part etc...
Or, add this through HTML/CSS Inserts -> CSS Inserts
HTML Code:
td#middle div.post-bodycopy {
text-align: left !important;
}
or this, to limit it to paragraphs inside posts and let i.e. image captions be centered. Depends on your posting habits whether this catches all remaining text or not:
HTML Code:
td#middle div.post-bodycopy p {
text-align: left !important;
}
Pwcomp, you should replace
left with
justify