Thanks for replies. Sorry about late response spent most of last evening reinstalling incredimail to no avail. Have installed it on my laptop but cannot get it to see my old emails which I've copied across from the pc. As I cannot access incred on pc cannot make a conversion file. The laptop can't see the old e-mails and I can't find the file where the laptop keeps the identities. (No there not in the identities folder or the default identity folder). I'll just have to keep looking unless anyone has any more ideas.
Well I managed to find out that because there are multiple users on the laptop the identities folder C :\Documents and Settings\Brian Willey\Local Settings\Application Data\IM\Identities. So I managed to transfer the files from pc and get the laptop to see my old e-mails. I still cannot run incredimail on the pc though so I,ve started using Outlook. Thanks all.