[otrs] Problem with big articles

Hi all, Our OTRS server is having problems serving the body of an article. The size of the body is little more than 2.5 MB. There is an Apache thread at 100%CPU but MySQL:'show processlist' lists all entries in Sleep state. Anyone is having a similar problem? Kind regards, Juan Clavero OTRS 3.1 on CentOSLinux [Apache and MySQL ] connected to an Active Directory for Agents and Customers.