Screen Options not responding

The “Screen Options” drop down menu does not seem to be working. It will check the box but the screen does not reflect the change and upon refreshing it reverts back to before the box was checked. It as if the “Screen Options” is not actually communicating with the server or database. This is happening in more than one of my WordPress installs and I am not sure the next steps in trying to fix it.

First it was happening on a site I’m developing for my friend’s dad. It wasn’t being so much of an issue until I couldn’t get the “Custom Fields” to show up on the pages, which is necessary for one of the plugins I’m using.

Someone at work suggested checking the original theme I used vs the altered one. I decided to do this on a dev site. After I upgraded the dev site the same issue started happening there too. I’m wondering if this is some glitch that happened when upgrading to the newest version of WordPress. I do not remember the previous version I was on before the upgrade.

Here is what I have attempted so far:

• I re-downloaded the 3.1 upgrade automatically through WordPress’s uploader.
• I have downloaded a fresh wordpress install and overwrote all of the files other than my “wp-content” folder and config file manually through FTP.
• I disabled the current theme and tried a variety of other themes, including the Twenty-Ten preinstalled WordPress theme.
• I made sure everything on my sites was up to date, including all themes and plugins.

Both of these sites are living on the same server. Here is my server information if it helps:
Operating System Linux CentOS
Apache: 2.2.17
CentOS: .
cPanel: 11.28.87
Curl: 7.12.1
MySQL 5.1.52
phpMyAdmin 3.3.9.2
Python: 2.4.3
Perl: 5.8.8
PHP: 5.2.4
ionCube Loader: 3.3.20
Zend Optimizer: 3.3.9
Ruby: 1.8.7
Rails: 2.3.5
OpenSSL: 0.9.8e-fips-rhel5