Upgrading PHP to 5.3 resulted in server configuration error on Piwik

Hi,
I accidently posted this in the wrong forum area, so apologies for the double post.
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Am currently using Piwik 1.12. In the settings area I get this message:
"You are currently using PHP 5.2.17.

Piwik is quickly improving and in order to provide you with an improved state-of-the-art Web Analytics platform, we will soon be increasing the minimum required PHP version to PHP 5.3. Please ask your server administrator or web hosting provider to update your PHP to the latest version, ideally PHP 5.4.

When you upgrade to PHP 5.3 or higher, this message will disappear and your Piwik server will process reports much faster using less memory. Update PHP and get the most out of Piwik! "

I had ServInt upgrade the server to PHP 5.3.27 and when I went to login I got the 500 error server configuration error...etc.

I ran phpinfo.php and verified the new version. Everything else on the server worked fine. The only thing that didn't work fine was Piwik which is the program that said it WANTED me to upgrade! spinning smiley sticking its tongue out

I then had ServInt downgrade the server back to PHP 5.2.17 and now it works fine again.
ServInt tells me that Piwik has to fix it. They can't.

Anyone else have this problem? Got any suggestions?

Thanks,
Rex