[scribus] Image resizing

[Andrew]

Hi,
I think I'm having a brain freeze at the moment, or a senior's moment.  
Maybe both …

I have an image of post-it note that I want to fill the size of an A4  
page. I can't for the life of me make it fill the page. If I make the  
frame the size of the page, then use adjust image to frame, there  
always is (considerable) white space on at least one edge.
If I use adjust frame to image, then I also have white space at the  
top and left of the image and adjusting the frame size manually (by  
dragging) and resetting frame to image doesn't refill the frame.

Something simple that I've forgotten, I'm sure, and my searching  
hasn't found a solution.

Scribus 1.3.9
Mac OS X 10.5.8

Thanks for any help!

Andrew