Symantec Management console is not opening, redirecting to an error page

Hi,

I am working on Altiris 7.1.  My Symantec Management console is not opening, it is redirecting to an error page. Initially it was working fine but i think the problem occured when someone in lab has changed the password of domain administrator account. The same account was used in Altiris 7.1 as a service account.

After that we have tried starting all the Altiris related services(on the machine where SMP 7.1is installed) again with the new log on credentials but still the Symantec Management console is not opening up.

Any help in this regard would be highly appreciated.

Thanks 

Nitin