OK, just noticed that the same Action is present in CS3 which I have loaded on another computer.
Can I copy it from this computer and put it in my desktop?
If so, where are Actions stored in CS3 and where should I put it in CS4? Please spell out the route to the directory!
Many thanks.
D.
Edited: Sorted! Found it in the Adobe folder and was able to resinstall it. Thanks to all. D.