Buffering?

>I have a strange case where SQL Select from a cursor does not find any records.
>
>Example:
>
>I have a cursor created with CursorAdapter that has one or more records (verified as follows). Then I try to select from it but nothing is found. Here is an example:
>
>

>select CaCursor
>browse  && shows that is has records
>select * from CaCursor where .T. into cursor C_temp
>if _tally > 0
>   *-- never gets here
>endif 
>select C_temp
>browse && shows no records.
>

>
>Why could this happen? TIA