Radio button toggles automatically

In a Form I have a radio-button array with 6 pre-defined values including their aliases. When opening that form the display value of that radio-button field changes per accident in the UI (error is very hard to reproduce). The value in the NotesDocument (backend) remains the same but the UI-representation of the field itself seems to toggle its value automatically. It is possible to notice that by looking at the field very consciously (field seems to be somewhat “distorted”) but saving the document will result in setting the UI-value into the backend doc.

Any comments on that??

Subject: Using a wheel mouse? If the field has focus, moving the wheel will change the value selected.

Subject: RE: Using a wheel mouse? If the field has focus, moving the wheel will change the value selected.

The field doesnt even need to have the focus! The changes (I beliefe it is a bug in the notes client version 6.5.3) are made to other option-fields as well.