i feel your pain mate,
i have a mac, and sometimes i get other people's patches, and the bottom corner of the patch goes below the bottom of the screen and it is impossible to resize.
the workaround i use is to copy the entire patch into a new window and 'save as'
if there is a real solution, then i have never heard about it, but i have my doubts that it can be fixed with the current way pd is implemented.