Calender freezing

[d12agonxboi]

Hi,

I have a lot of information on my calender or organizer, but now everytime i go into it, it wont load up anything, just the hourglass. After a couple of minutes it would say the a memory error and ask me to shut down some programs.

How can I fix this? i want to go in there and delete prior appointments.

[Ator]

I had many calendar-information too. So I deleted them with MobilePhoneTools. But only with MPT 4.x I got them removed (I think there hab been an Option in the synchronization-menu to delete all from phone).
And only with MPT3.28 I can synchronize my calendar. So I upgraded to 4.x, removed them, deinstalled MPT and installed the old version.
After that I synchonized only 4 weeks back and 12 weeks forward. Now the speed of the calendar is acceptable.