Alerts not working, Search bar bug, Access Denied

1.)A Previous alert for example:

"NOTITLE

1 new comment referencing you"

If I click the link it brings me to the homepage. The post does exist, because I found it manually.

2.) If I click the "Search forums..." search box it brings down the alerts, and I cannot actually click on the box. I can click on the "Advanced search" link though.

3.)I get a message everytime I try to post that says

"Error

Only members with sufficient permission can access this page.

A security error has occurred with authentication.

Please ensure that all cookies are enabled on your web browser, you are not using a saved or cached copy of the page, and your Firewall/Proxy settings are not hiding or masking your IP address."

I just press back and press submit again and it goes through.

I use Google Chrome Version 27.0.1453.116

For bug #2:

Okay so the source code that is in the way of the "Search Forums..." box is this image

<img src="/images/fresh/user-dropdown-arrow-01.png" width="8" height="8">

Hmm it seems that little arrow is in the way for clicking the search box, I deleted the PNG file of the arrow for me locally and it seemed to work much better.