I'm running Joomla 1.6 with CB 1.3.1

The login screen and everything works fine but when I try to update my profile I'm getting the following error:

Server error.

The website encountered an error while retrieving small-business-success-network.com/my-profile. It may be down for maintenance or configured incorrectly.

Here are some suggestions:
Reload this web page later.
More information on this error
Below is the original error message

HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request.

I have been through the whole, SEF and uninstalling of modules, plugins and components and not finding the solution to this problem. Any insight you can lend into it would be greatly appreciated!

Thank you!

Database Version: 5.1.52
PHP Version: 5.2.15

Doc Subscriber plugins as well as some items from Incubator. This is the first time I tried to update a profile but the twitter connect plugin did cause me issues.

Extensions Installed:
Admin Tools
AcyMailing
CB Adv. Search
Kunena
CK Editor

Artisteer Template

Plugins
CoreJoomla jQuery Plugin
ByeByeGenerator
Website Optimizer Basic
Clean Response

Modules
JomLand NewsSlider
SP Accordion module
Transparent Custom Skype Status Buttons for Joomla 1.6
Tweet Display Back
Tweet List Viewer

That is literally everything I have installed.

Yes, the Joomla site has a whole section of 1.6 ready extensions. Check out the below link: (P.S. CB should be added!)

extensions.joomla.org/search?f=1&q=16native&sa.x=0&sa.y=0

I have went back to 1.5 for now because Virtuemart is not 1.6 native yet.

I kept an excel list of all extensions installed and virtuemart is literally the only one not ready for 1.6. Once it is I will upgrade (end of March they say) until then 1.5 works well and I know the rest of my site is 1.6 ready and an upgrade should be smooth sailing