Selection Screen Refreshing

Hi,

I created a copy of the transaction LSO_RHXBUCH0. I noticed that if I select a few radio buttons/check boxes and then F4 on a select-option (e.g Participant) all the settings I checked revert back to the original.

Can't see why so looked at the standard transaction LSO_RHXBUCH0 and the same thing happens there.....

1. change Reporting Period, Selection Options and Standard Selection Screen.

2. F4 on Participant

3. select a person

4. press return

All values back to defaults.

Can't find anything on OSS about it - any ideas?

Thanks.