Earliest Date And Grouping

Hi I am having trouble and I don't know why.

I have this query which I pasted below. I need to find the earlist effective date (pcsp_eff), but I need to show all of the fields below in my report like a flat file. I know ususaly when you use Max/Min you have to have a group by, would I group by everything that is in my select statement?

SELECT Distinct
dbo.pcs.pcs_id1,
dbo.pcs.pcs_lname AS [Last Name],
dbo.pcs.pcs_fname AS [First Name],
dbo.pcsp.pcsp_eff AS [Effective Date for Provider],
Min(pcsp_eff) as "earliestEffectivedate",
dbo.pcst.pcst_trm1 AS [Tracking Thru Date],
dbo.pcst.pcst_dat3 AS [Re-cred Letter Sent Date],
dbo.pcst.pcst_dat7 AS [Re-cred Complete Date],
PRO_STATE as "State",
PRO_COUNTY as "County"--, PCSP_NET

FROM dbo.pcs INNER JOIN
dbo.pcst ON dbo.pcs.pcs_id1 = dbo.pcst.pcst_id1 INNER JOIN
pcsp ON pcs.pcs_id1 = pcsp.pcsp_id1 left Join
dbo.pro ON pcs.pcs_id1 = pro.pro_id1

WHERE
(CONVERT(CHAR(10), dbo.pcst.pcst_dat3, 110) <>'03-23-1977') and
(CONVERT(CHAR(10), dbo.pcst.pcst_dat7, 110) = '03-23-1977') and
(pcsp.pcsp_prd = 'DGH') AND
--(pcsp.pcsp_id2 = '0001') and
PCS_CTL = 'I' and
pcsp_NET <> 'DACFP' and
pcs_id1 = '00004307'

Group by pcs_id1