Note that I had the same issue: WP worked fine on one server, but broke with a similar error message about an unexpected $end on line 203 of gb_design.php. At first I thought the issue was due to a difference between PHP versions (old server had 4.9 installed vs. 5.3 on the new one), but after sorting through the code, I noticed one case in which a short open tag was used on line 169, which means the closing bracket on this line will be skipped if php.ini isn’t set to recognize short open tags.
I changed <? to <?php on line 169, and the problem seems to be resolved.
