Hi, I tried to install Primavera Enterprise 4.0 and Primavera E&C 4.0 on my computer, but I’ve had problems. It asked me to select a connection to a database (Oracle, SQL Server and other). The thing is that I didn’t have these problems when installing P3 3.0 or 3.1 version. Isn’t P3e or P3e/c a software that you can install on your PC? Does it only work with server-based databases, such as Oracle, SQL Server and so on? One more question: Can you have both P3 3.1 and P3e or P3e/c versions together on the same computer? THANK YOU VERY MUCH IN ADVANCE.