Apparently you had an earlier version of Acrobat installed on the previous machine. I am pretty sure that by looking for the Exchange Driver, that is what is being asked. I may be wrong and you had some other PDF conversion software installed. However, that sounds like the problem. Bill > When I try to PREVIEW a chart in PAF Companion I get a small window > that states > "Could not find PDF - Exchange Driver". Can anyone explain this and > possibly where and > how I can get this driver. The PAF Companion program was loaded onto > my first computer > and when I purchased this one ALL the programs, files etc were > transferred. >