That is probably InfoPath problem. Use my Office Slipstreamer (link in my signature) to slipstream SP3 and hotfixes. It will fix that problem automatically. Also, I will recommend direct slipstream, since you will got same size as your original CD. If you do not want to start everything again, copy your Office files to HD, load Office 2003 into Slipstreamer and from menu File select "Microsoft.Office.Interop.InfoPath.SemiTrust.dll Fix". Cheers