>They don't "convert" by themselves
No, they dont, VFP does it.

>>One of my classes (based on a form) has become a formset. All methods and everything has gone.
>How does that happen? They don't "convert" by themselves, only by making a mistake (maybe while hacking the vcx?)
>
>>1. Is there a way to recover it?
>From a good recent backup.
>
>>2. Will that be fixed in version 10 (tons of sarcasm)?
>What's there to "fix"? I don't see it as broken in VFP.