Colours look different in Corel

Hi,

When I im****t a red-image in Corel PhotoPaint then the red does not looks 
red, more orange.
When I create an image in Corel PhotoPaint with a red background then the 
red does not look red, looks again more orange.
But when I ex****t these images to jpg. And view them with for example my 
browser or other viewer then the red looks red. Why not in Corel?

How can I see the 'real' colours in Corel?

Thanks!