[Scribus] Images distorted

[ols6000 at sbcglobal.net]

JPEG images are being distorted in Scribus 1.3.3.9cvs, Linux FC6.

Original image is 6671 x 3999 pixels
When Scribus places this image in a 6.4861 x 3.6111 inch frame, 
Properties->Image shows 1107.4 dpi (6.5%) when Scale To Frame 
Size/Proportional is selected. Image is distorted, being compressed 
in x-direction.

When Free Scaling is selected and X-Scale changed from 6.5% to 7.5%, 
Actual X-DPI = 960 (Y-DPI remaining at 1107.4), and image appears 
approximately correct.

These images appeared correctly on Windows XP 1.3.3.7. Deleting the 
image and re-placing it does not change anything. It looks like every 
image has the same problem.