This is a handy tip I picked up here which might also work:
Create a new layer
Fill it with the color of your choice
Reduce the opacity of the color (via the slider bar)
Now you should be able to see the image to which you
want to apply your selection, but, you're in the layer
you've just added
Add your selection
Click on it (the color should change to the color you
filled this layer with)
Select the deformation tool
Move your selection where you want it. Adjust it as
you see fit.
Click on the selection tool.
Defloat the selection (right click on the "floating
selection" in the layers window, select defloat)
Delete the layer you created.
There will be the selection of your choice.
Should you change your mind, hit Ctrl-Z a few times
to back up a few steps.
Posted via CNET Help.com