Hi April
To expand on what Dan wrote, open up the ADSPROF.DAT file in the data folder using Notepad, and make a note of these two lines:
Currency=c:\softrak\system
Task=c:\softrak\system
Then open up the ADSPROF file for the two datasets that are having the issue and make sure those two lines say the same thing.
This issue can pop up if you try to launch Adagio when the drive mapping has been temporarily lost.
Steve