so I know that the developers are aware of the issue when trying to pin the windows to the desktop in vista or newer OSes; I get a warning in v. 2.5 of rainlendar that vista renders things poorly when I try to select it. and if I do select it, transparency stops working and the rendering does indeed get weird.
I just wanted to point out that, in windows 7, there is a button on the far right side of the taskbar that highlights the desktop by turning all open windows into outlines when you hover the mouse over it (the feature is called "preview desktop," and is a sub-function of aero peek):
www.winsupersite.com/win7/ff_aero_peek.asp
needless to say, it would be awesome if rainlendar was preserved when I did this, so that I could check my calendar by hovering over this button.