[scribus] No page appears - need help urgently!

[H. Story]

Hi

I'm completely new to Scribus and I can't work out why I can't see the page 
I'm working on at all. If I create, for instance, an A4 page the dark grey 
background is replaced by a lighter grey one and rulers appear but no white 
page. I can create text boxes but when I add text to them it appears in 
print preview but not on my screen. I think there must be something very 
simple and painfully obvious that I'm doing wrong but I just can't work out 
what! At the bottom of my screen there's a drop down menu and the only 
option is 'background'...should there be another option there?

Please help!

Alexa.