OmegaMan

oops! Bad paste thanks thanatica #2 for pointing it out. ?? I will look into the plugin.

See this post [resolved] SVG upload not allowed??

It helped me upload silverlight xap files. HTH

Clayton Thanks!
I needed to upload Silverlight Xap files as well and used:

add_filter('upload_mimes', 'custom_upload_mimes');

function custom_upload_mimes ( $existing_mimes=array() ) {

	// add the file extension to the array

	$existing_mimes['xap'] = 'mime/type';

        // call the modified list of extensions

	return $existing_mimes;

}

I had the same issues, unable to login with primary browswer, while secondary browser worked. Same effect on different machines…points to WordPress as the culprit.

I believe that session state is kept in the database and upgrading without logging out is the culprit.

Once I had logged out, I could then login. Next time I upgrade, I will be sure to logout first!

Same problem. I was unable to get into the dashboard on Firefox, my primary browser, and could only get in on IE. Note I have two different systems and both behaved the same. On one system I cleared Firefox’s cache. No luck. After two days (the latency might have fixed it) I went to my main page and under site admin, my theme has it, there was a logout link.

Upon logging out in firefox, I was able to login!

It appears that if one upgrades while a session is still active, that session state is stored in WP database(?). From here on out I will logout before upgrading again!