[AccessD] First of each group

I have a "system" table, with the PKID (autonumber), the name of the system,
and the system description:

PK	Sys Name	Sys Descr
1752	AHU7135	Air Handling Units
1754	AHU7137	Air Handling Units
1743	AC0037	Autoclaves (Decon)
1744	AC0038	Autoclaves (Decon)
1745	AC0039	Autoclaves (Decon)

Etc.  

I need to select the PK, Name and description for the FIRST instance of each
system of a given description, and populate a combo with the results:

1752	AHU7135	Air Handling Units
1743	AC0037	Autoclaves (Decon)

I don't know how to do this is a simple SQL statement.  Any suggestions?

John W. Colby
www.ColbyConsulting.com 

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