Basically my dillema is this. My clients want to know why they running different versions of the Oracle software on the client and the server, and after paying several thousand dollars to do a data-move from 8i to 9i there are a few of them that feel we as a company are not being honest about the time that was spent moving the data. These statements are more out of ignorance than anything else... I know that from my expirience there seems to be no difference with the clients... therefore I did not feel it prudent to authorize my tech manager to spend hundreds of additional hours upgrading clients at essentially our own cost. But since several of our clients are concerned with the difference I have had to revisit the question in more seriousness and I found that I cannot locate any information on the subject. And "I don't know" is never a good answer...