Create Basic Box dialog from Studio Toolkit for Boxes is too big to fit screen.
When the dialog is opened to create a basic box, it is displaying too big for the monitor so that the buttons at the bottom cannot be accessed. It is also not possible to resize this dialog.
Check the Display Settings of your monitor. Try to increase the resolution of the screen.
Another issue could be with multi-display adapters used for multiple monitors. The Matrox DualHead2Go (and likely the TripleHead2Go) modules and/or its software, 'PowerDesk' have been found to cause this problem.