Safeguard PDA & PI...where are finished my appointments?

[dav_ide]

Hi all, i've installed Safeguard PDA on my X50V wm2003 and everything seemed perfecty but when i tried to add a new appointment using Pocket Informant i saw that all the other appointments was disappeared! The curious thing is that they are present in Outlook (on my desktop pc) and also launching the calendar default application!
So what's the problem? maybe not compatibles? I've tried uninstalling/reinstalling Pocket Informant but nothing, idem with Safeguard...
I've also tried an hard reset and recover a previous backup without news

Any idea?
I would like to keep both of them, but it seem impossible...

Thank you for any help