UserControl - size problem in designer

Hi,
I have problem with using my user controls in designer - desingner ignores
my default size of my control and allways creates new controls with size 200
x 200 points. Since desinger does not show content of usercontrols in CF,
this makes UserControls quite unusable for me...

1) I create new UserControl class called MyUserControl and sets it's size
property e.g. 100 x 50 points.
(I checked generated method InitializeCompoment and it seems fine, size is
set to 100 x 50)

2) I use this control in new Form. When i drag this MyUserControl on the
form, this control is created on this form, but it's size is 200 x 200
instead of 100 x 50.

When i do the same in full Framework, it works fine...

Is there any workabout how to make this work?
Thank for any ideas