Hi

Because install window is fixed size (not resizable) bottom of this window is below screen level in Ubuntu Netbook Remix on ANYx600 resolution netbook screens (almost every 10" netbook in stock now) and there is no way to make window smaller, so buttons and "Install .pol or unsupported package" are not accessible.

I also found this issue using standard Ubuntu with a 1024x600 screen.
Install window may be resizable.