Antranik,
Are you putting all 900 records into your combo? This is NOT a good idea - combos aren't happy with more than 100 or so records and weird things begin to happen. This is particularly true if the combo is in a grid.

When I needed to have users pick from a list in a grid (and I had 32,000 items that time - inventory part numbers) I ended up with a textbox showing the item. In the WHEN event I added code that popped up a little grid search form - all the items with a couple of indexes and a Quicken-style search textbox. Whatever the user chose was fed back to the original grid. Very fast, since after the first use I used HIDE() not RELEASE() on the lookup form.

HTH
Barbara

>Hi all,
>
>Can anyone let me know what this error can be.
>I'm using VFP6.0 on Windows 98.
>
>In a form I have a VFP Grid with a Combo Box
> Combo Box.RowSource = pattern.code, desc, coo, tariff
> Combo Box.RowSourceType = 6 - Fields
>
>Whenever I select this one patter code "F 4344" it gives me GPF error.
>I tryied everything, can't find the reason.
>
>Any info would be great.