I synch with two PCs - my home PC and my work PC. After synching my home PC with my ppc, I want to update my work PC with the data on the ppc. However, lately, it offers to combine all the data or replace the data on the ppc with the (older) data from the desktop. It doesn't recognize only the changes made to the ppc and update the work desktop accordingly. Likewise, after working all day and synching that data with the ppc, the home pc doesn't recognize only the changes.

HELP!

I have exactly that problem, and came here looking for a solution. For over a year I have successfully synced with Outlook at work and at home. When they migrated my account to a new Exchange server at work, I was not surprised when I got only the combine or replace option at my next sync. What surprised me was after syncing at work, I now get that at home too. I'm thinking I need to delete the partnership in both places and start over. I'll let you know how it goes.

Deleting the partnership(s) did not make the combine or replace prompt go away.

I did a replace at work, then a combine at home, and now things are back to syncing okay. The fallout is that some of my appointments now appear twice - but not all of them as I had feared. What I really needed was a "replace the data on the desktop" option, since my work calendar is the important one. I've had meeting notices get converted to appointments before and it creates all kinds of problems!

Microsoft really needs to improve that dialog box so it explains that "combine" actually includes duplicate checking, and add a "help" button that provides some background info on the problem.

So I guess the short answer is if you start getting that first-sync combine or replace message unexpectedly, replace the data on the PPC from the most important desktop, then combine the data from the PPC with the second desktop, then clean up whatever mess that made.