E7-00 does not sync calendar with MfE

Question

After Symbian Anna upgrade my E7-00 does not sync calendar at all with MfE.
Where was a problem while upgrading to symbian anna: I first tried to do it over the air, but the phone hung up while downloading part 2/2, so I ended up to do this by OviSuite. After that I sometimes get a "Järjestelmävirhe" (System Error?) alert when powering on the machine (after giving pin code).
I've tried to delete and reinstall Symbian Anna few times and removed the MfE settings but no hope. It seems to me that somehow the MfE-client (comes with symbian anna or firmware?) is still version 1.00.00 and with my collegues phone it says the version is (should be?) 3.00.000.
The collegues log (everything is working):
05/10/2011 12:00:32 Mail for Exchange Build : 3.00.000
05/10/2011 12:00:32 Device Software Version: 014.002
My log:
05/10/2011 12:05:31 Mail for Exchange Build : 1.00.000
05/10/2011 12:05:31 Device Software Version: 022.014
Is this the problem? How can I upgrade only the MfE for E7-00. Ovi Store does not support MfE download for E7.

Answer 1

After much fiddling with my Calendar I have resolved the problem:
1. I exported all the calendars individually and saved them on your desktop
2. Using an iOS device delete all the calendars on your iCloud account (you should be able to use iCloud.com in the same way)
3. Now that your iCloud calendar is empty, import the calendars from your desktop one by one waiting for them to fully sync before doing the next one.
4. Done!
*I discoverd that one of my calendars was corrupted and would not install, perhaps this was the problem? However I believe that it was because my calendars had too much content (multiple repeating events and sporting event subscriptions). I got rid of the sports ones (huge) it was very slow to upload, and I decided to slim that calendar down as it's not very important.
I personally think it's a calendar event overload problem, too much content for iCloud to handle. It would make sence because I had no problems with any other part of iCloud (reminders/notes...) and my iPhone calendar was fine (because it does not upload any old events, ie dramatically less content)  I hope this helps!