I have a newly installed version of sugarCRM 5.2 on Centos 5.2 using php 5.1...

I am having a problem with the Studio Module, when click on the module the page loads, but only the left column...the "Main" and "Help" columns have no information displayed. and when I go to a specific file within the file tree, and click on an element I get the following apache error.

[Sun Jan 11 12:19:37 2009] [error] [client x.x.x.x] PHP Fatal error: Class 'ListLayoutMetaDataParser' not found in /var/www/html/sugar/modules/ModuleBuilder/parsers/views/SearchViewMetaDataParser.php on line 42, referer: http://x.x.x.x/sugar/index.php?modul...ex&type=studio

any suggestions would be much appreciated.

JG