Naomi,

If you set the AutoSize back to true and then after the control is sized, move it one pixel over and back into place, does it still jump out of place? I seem to recall that fixing the behavior for me (but, then again, maybe not). And, I would consider it a bug, but that's just me.

HTH,
Chad

>>>Yes, you've to change AutoSize=.F.
>>
>>Yes, done that. Is it a correct behavior or considered as a bug?
>
>I've no idea if it's a bug or not but it's known behavior.