bad size photos

[hfx9]

Hallo,
i have install ozio gallery v 1.0.8 bud i have problem with image size.
I set in administration page FlashGallery and Flash width: 900px , Flash height: 750px.
Upload jpg photo (800x535px) into corect folder and look on my web page. View image bud his size is width=790px + white boarder.
When i click right button on the image and click to "fullscreen mode on" image show in correct width=800px + white boarder.

Please Carneade. I need look size image correct in first time (no after click fullscreen mode".

this is link to page with problem: http://joomla.hfx9.com/index.php?option=com_content&view=article&id=2&Itemid=4

Thanks for your answer.

EDIT: I testing this problem in my work and result is:
Under Firefox is image size bad and dont work fullscreen mode, under IE is all corect.

[alexred]

EDIT: I testing this problem in my work and result is:
Under Firefox is image size bad and dont work fullscreen mode, under IE is all corect.

Ciao hfx9, thanks for edit and reply