Hi Christian,

According to the MS Support Article below, using an array is the best solution.

Q171047 - PRB: Insufficient Memory in FoxPro for Windows on Fast Computers



>Hello,
>I have a problem with a listbox in Foxpro 2.6:
>The listbox is filled with a cursor, and when the cursor contains more than 400 records, I get an error "Insufficient memory", but only on faster machines (more than 300 MHZ).
>This problem doesn't occur when I use an array.
>
>Does anybody have an idea what the reason for this error can be?