I'm getting an "Permission denied" error when trying to update data on a particular MSSQL table through COM+ component. All other tables seems to update w/o any problems and there are no special permissions set for this particular table in question.

I ruled out any MSSQL user account access as the source since if I install
the exact same COM+ component on another test server the update works.

On the problem server, I could see that the method is being properly called
(the ball spins like it should) but get the "Permission denied" error back
on the client app. For now, I have "Enforce access checks for this application" unchecked for Authorization in Security tab of Properties. The Identity of the component is set to an user account having full admin rights on the installed server.

It appears to a security/rights issue but I can't see why only particular table would be affected. Any help would be much appreciated.