COM and SEH exceptions on MCMS pages

hi,


i am getting the below unhandled exceptions on my website. exceptions
are not very frequent but still they are many.  this is happening only
on the template based aspx pages but never on any non template based
aspx pages.
Configuration of the Server: webserver: win 2003 server ed. sp2, MCMS
2002 sp2., with sql 2005 hosted on a separated server.

Exception 1:
Process information:
    Process ID: 10328
    Process name: w3wp.exe
    Account name: NT AUTHORITY\NETWORK SERVICE
 Exception information:
    Exception type: SEHException
    Exception message: External component has thrown an exception.

Exception 2:
Process information:
    Process ID: 7044
    Process name: w3wp.exe
    Account name: NT AUTHORITY\NETWORK SERVICE
 Exception information:
    Exception type: COMException
    Exception message: Server error.  Contact the site administrator.

Help will be really appreciated.

Thanks,
saurabh