Hi nebgranny,
Glad you are working with Photoshop!!!
It is very difficult to give specific advice without a picture to work on .... Maybe you could crop a damaged part of the background and post only that ....
Anyway, in a case like the one you described, I would try these methods:
*Clone good parts (sampled from sorrounding areas) on the damaged ones.
*Copy and Float method ... meaning:
* Use the Lasso Tool to loosely select around the damaged area.
* Go to
Select>Transform Selection and move the selection over a good part of your picture.
*
Ctrl+J copy the 'good part' to its own Layer, move it to cover the damage and, with the help of a Layer mask, adjust for tone contrast and colour.
Hope this helps...
P.S. Did you receive my PM about the new
Tutorial on Layer Masks?