Form Edit with tier

[GARY Winzeler]

I have a very simple form one column (currency) in a tiered region.

All the values are null to start.

I am using: R:BASE 2000 v6.5++ Windows (32-bit), U.S. Version, Build: 1.851xRT03

I enter the form using:         EDIT USING formname

1) the first row is fine the null is highlighted you type a number and hit enter and it goes to the next row.
2) the second row is fine the null is highlighted you type a number and hit enter and it goes to the next row.
3) on the third row (and every row after) the highlighting of the null goes away and when you type a number the null stays there and results in an error if you hit enter (not a valid currency) and requires one to delete the null symbol each time, either before or after entry.
4) using F7 or F8 does not exhibit this problem but when entering larger amounts of data it is highly preferred to use the numerical key pad with the enter key close by.

Has anyone else seen this?

Any work arounds?

THANKS