Hi, I own a HTC Sensation and just today I got the system update to Android 4 with Sense 3.6, being the system version after installing it 22.214.171.124. Everything was syncing well, but after installing the ref. system update, I get message: "Unable to copy calendar items from your device"..... HTCSync version is 3.0.5606. I know there is an update for the HTCSync and I tried it, but then I get message "Unknown error:1000", so I got back to my previous version 5606 that before the last HTC system update worked perfectly. If I unmark Calendar in HTCsync, both Contacts and Bookmarks sync OK, but when Calendar is marked, everything stops when the calendar error is reached. I googled looking for the error, many entries, but most of them old ones. My question is: Is anyone having similar error these days, that we could feel can be related to the last update? Any help will be welcomed, as with that error no calendar sync is done, neither from Outlook to HTC nor viceversa. Aditional question is this the right place for this Post or would it be better placed in the Android general discussion forum? Thanks!