I believe this article should answer all your questions as well as what you need to do:
It's a new feature in 9.0 - keeps the database clean from corruption .
The side-effect of that is that is also blocks (by default) any "legit" custom data. Usually one/two of those encounters and you'll remember it well enough, if the experience around the folks is anything to go by .
Catches most of us off-guard first time .
- Paul Hoffmann
LANDesk EMEA Technical Lead
What OS are the 2 target devices?
Are they Windows 7 - is there any UAC applied?
Yes they are W7 but UAC is disable, thanx
Thanx Paul, doc is illuminating, sorry i ignored the Unknown Items option as well as the document. It' s a clever features!
Obviously now it works fine.
Caught us off-guard as well ... once you've been caught once or twice, you'll remember it .