Does cursor have any indexes?

>I get DATA TYPE MISMATCH when running this line of code below, but ONLY for the first time. If I suspend and resume, the program runs successfully over that line. Is there some strange fluke happening here?
>
>There is a COUNT statement that happens directly before this and I thought perhaps this could the culprit somehow? I just don't know how.
>
>COUNT for fullrsn = reasdesc to ttlallvends
>select mycursor
>
>bombs on Select mycursor