Perf Charts service experienced an internal error

I got that error after upgrading my VMware Cluster from vSphere 4 update 2 to vSphere 4.1. Also, I had to migrate my vCenter 4 update 2 (on 32-bit Windows 2003 with MSSQL 2005 installed locally) to vCenter 4.1 (on 64-bit Windows 2008 R2 with a remote MSSQL 2008 R2 Cluster) as vCenter must be install on 64-bit OS.

Anyways, after the upgrade everything went fine escept for some issues like this error:

PerfChartsError

This error may occure because you are using a custom SQL server database with a custom Java Database Connectivity (JDBC) SQL port

Here are the steps to fix it:

1. On the vCenter Server system, navigate to: C:\Documents and Settings\All Users\Application Data\VMware\VMware VirtualCenter
2. Open the vcdb.properties file.
3. Comment out the string usevcdb = true.
4. Ensure that the values for url, driver, and dbtype are as follows or add them (after the “usevcdb = true” line) if they don’t exist:
                     url = jdbc:sqlserver://<hostname>:<port>;integratedSecurity=true
                     driver = com.microsoft.sqlserver.jdbc.SQLServerDriver
                     dbtype = mssql
5. Restart the VMware VirtualCenter Management WebServices service.