How can maximize?

[wowwow]

I have Windows 7 and I can minimize worms , but I can't maximize then , both the menu and at play.

However I can maximize when I have minimized in a Replay .

What could I do?

Thanks

[poninja]

http://worms2d.info/Troubleshooting_FAQ#When_I_minimize_the_game.2C_I_ can.27t_restore_it

[wowwow]

Thanks I start it without admin privileges and i can maximize but now the problem is that i get another error : wkPackets cant be incializated.

http://img405.imageshack.us/img405/226/contitulo.png (http://img405.imageshack.us/i/contitulo.png/)

If i start it with admin privileges this error isn't displayed

Is there a way for don't get this error an be able to maximize?