@fabianlindfors Is it possible to only start session when a form is loaded?
I had this same problem and found a solution. Under the plugins directory, if you open the file wp-minify.php, change line 929 from this:
require_once('common.php');
to this:
require_once(dirname(__FILE__).'/common.php');
it appears that on some setups, like mine, the php include path includes the PEAR directory, which happens to have a file called common.php
Hey guys, the fix posted by jaco should work, I think the issue you guys are having is a cached javascript file. Try erasing your cookies and restarting your browser and try again after apply the fix in the 2nd post of this topic.