resource editor incorrect sizing of objects for PPC

[DaLiV]

create simple form for PPC
size of form is not equal size on PPC

actual result:
in editor form sized approx 160*213 for fullscreen (on ppc visible as 240*320)

expected result:
in resource editor : 240*320 -> PPC 240*320

[DaLiV]

project attached ... see image untitled.png and form in resource editor ...

[Pelle]

It's not supposed to have the exact same size!

[DaLiV]

why not ?
how to develop application for full size of screen, as all is stretched and blured ?
where is problem to set 1px is 1px and not 1px is 1.453pixels ?