Hi Rob, I have installed and uninstalled CS2 on a number of occassions since the problem arose and each time I have cleaned up the registry to get rid of all the bits but no no avail, Still getting the same error code, I shall be downloading a copy of Adobe Reader later today, as that is a different product from Photoshop and maybe this is what they could be referring to in their error code. I will post back this evening with the result