I purchased the individual CDs for ECO D4 and ECO C5. They have different versions of CIE. Which is recommended for use? Since 6.6, which came with C5, is later than 5.1, which came with D4, I installed the C5 CD first. But, now that I have C5 installed, how do I install the data for D4? When I try to import a publication and have the D4 CD in the drive and looking at the directory CIRinstall, the only one with a .DB file, it won't even recognize the D4 file CIECO.DB as being a DB file. Just what am I doing wrong? Help would be appreciated.

Many thanks,

Bill