I have done both of these things.. The twenty eleven theme works perfectly fine.
My problem has to be with Thesis 1.8.2
In my thesis 1.8.2 error_log I found this ::
[06-May-2012 16:44:53] PHP Fatal error: Call to undefined function thesis_html_framework() in /home/imc042/public_html/wp-content/themes/thesis_182/index.php on line 7
But its only one entry and it was yesterday..