Try running the game using the hardware mode shortcut. That seems to default to full screen, at least with me it did.

Unfortunately for me, the only mode that really works properly is the windows patch, which is currently shrunk to the size of a postage stamp with no way to fix it. Hopefully We'll get a fix or workaround for this soon. =/

It works in hardware mode for me on my laptop. Yay!

I haven't got any problems with it but maybe pressing Shift+ works.