vividhaditya

I too had the same problem. Deactivating all plugins didn’t help. Removing .htaccess file from wp-admin folder too didn’t help.

But adding:
define(‘SCRIPT_DEBUG’, true);
to the wp-config file solved the problem.

But it has slowed down the admin side. Hopefully, there will be a permanent solution to it soon.

I think the problem is with IE7 and not with earlier versions. THere is folder called CSS and there is ie.css file in it. Your header is calling this file in IE7. These hacks were there for IE as IE was never W3C compliant.

But IE7 has improved itself and is W3C compliant now. The most you can do is open your header.php file and look for where it is calling the ie.css file. it should be between the endif tags. Just remove that. It should work now. At least it worked for me. Though I had doubts that it wouldn’t worker in the earlier versions of IE. But it has worked for me in that as well.