I have a Treo 650, and I run a Outlook Exchange, on windows XP. This configuration is the same for both home and work I installed my hotsync application I have problems syncronizing my calendar both ar home and at work. 1. I set the preference to syncronize my calendar 2. After I syncronize, I realize that on the registry, no activity has been done on the calendar 3. When I look at the preferences, I realize that my instructions on the Calendar have been overuled, and "someone" changed into "do nothng" ! 4. I have this problem both at home and at work I called Palm, and they only offered to sell me some assistance. Then I extorted that in the Knowledge library # 8985 there is my answer. In reality this reference is inexhistend Thanks Giorgio