>clear danger: older version of source played in from version control or elsewhere.
>probably safe: daylight time switch - you need to recompile if you want to debug, not sure if vfp compilr has the same bug as debugger.
>
>
>>What happens if i don't check off "recompile all files"? What's the danger? How often does it happen?
>>
>>>I always recompile everything for distribution.
>>>
>>>
>>>>At some time in my distant past I checked off the "Recompile All Files" checkbox in all my projects. I have long since forgotten why I did so.
>>>>
>>>>What happens if I uncheck it? (Yes, I know the timestamps on all my VCXs and VCXs won't change any more, and it won't take forever ....)
>>>>
>>>>Or, maybe the question should be ... when would I ever want it checked?
>>>>
>>>>Thanks in advance

Yes, your statement of the clear danger makes a lot of sense. Any other less obvious worries?

As for daylight time switch -- a twice a year thing is something i can live with.