I have never heard of DateMan but there are certainly third party PIM enhancements. The two big ones are
Pocket Informant and
Agenda Fusion. To find a list of others, go to a software house like
Handango and try to narrow down the category as I have done in the aforementioned link.
Both Agenda Fusion and Pocket Informant have trial versions and hopefully many others do as well so you can install and see if the program does what you want.
Admittedly, I don't believe Agenda Fusion or Pocket Informant will display multi-day events they way you want
Regarding your problem with syncing, a third party PIM enhancement will not correct that issue.
I would recommend getting the synchronization issue sorted first.
For starters, does anything sync at all?
Are you syncing through Exchange Server Activesync (over the air) or directly to a desktop Outlook client? If syncing to a desktop Outlook client, is your data stored in a personal folders file (pst) or is your client connected to an Exchange Server?
Tracking down Activesync errors can get tedious. The usual steps to take are:
- 1. Delete the Partnership and start a new one
2. Uninstall then reinstall ActiveSync
3. Install the latest version of ActiveSync (or sometimes, go back a version)
There may even be corruption in your calendar data in which case it may be necessary to find the corrupted data and remove it.
My first suggestion would depend on if you have any synchronization at all.
If you can sync, but no calendar entries are syncing, I would try moving everything out of my calendar and syncing one or two clean, new appointments. Then if it is successful, experiment with moving back the original calendar entries until they are all back or the problem pops up again.
If the calendar is syncing, but multi-day events are not, I would still try the above steps first and even try creating a brand new PST file to see if that will sync correctly.
Of course, these steps do depend on what kind of setup you have.