Anna,

You should definitely be able to see a preview for your uprs - this was even present in UF2 - see image above.

It is also possible to alter the size of the prview you see under Options > Options > browser tab

Incidentally - the preview also works for viewing gradients.

Tina

aartika! fractal art by Tina Oloyede :  http://www.aartika.co.uk