>Sure
>
>"SQL group clause missing or invalid" under engine 90
>
>Now remember this was just a "first cut" stab at the SQL and I've trried many permutations, including "group by 1, 4"
>
>

>Select JobAct.OurInvID, jobheads.JobID, SUM( jobheads.Quantity) as Booked, SUM( jobact.hours) as Charged, JobHeads.LabourID ;
>  from jobact, jobheads ;
>  where jobheads.JobID = jobact.JobID ;
>  AND jobAct.JobID = "RTvo" ;
>  and not EMPTY( JobAct.OurInvID) ;
>  group by OurInvID, LabourID ;
>  into cursor JobsS
>

>
>What exactly IS VFP 9's problem with this (remember I've only been using 9 for 2 months now)

This query also needs a group by jobheads.JobID. All fields which are not in aggregate function MUST be listed in GROUP BY. So, the rule is very simple: either field should be one of the aggregate functions (MIN, MAX, AVG, COUNT, SUM) or it should be in GROUP BY list of the fields.