Unable to synchronise some calendar items to pda

Hi,

I have a user who is unable to synch all her calendar items to her O2 Atom
life PDA. The Sync has completed. But apparently some of the events are
still not able to snyc in after random check. Eg. Some of her recurring
items are not synchronised and these items have an end date and duration
set to 2 hours, etc. Some of her calendar items also have long comments &
her outlook calendar size is more than 24mb.

Can I check what is the maximum calendar size windows mobile can allow to
store in the PDA? Does microsoft has an article on the total calendar size
that it will allow to be sync into the pda?
Please refer to the test I have done on her pda.

Test Done:

I try to create a new event. Snyc is successful. For those event that cannot
snyc, I modify its content by adding spacing & the snyc is successful.

However, it is virtually impossible to scroll thru her calendar items as
there are 9000 over items and it is just not possible to add all spacing to
all those calendar items that are having issue with the
synchronisation.Could it be that some of her Outlook calendar items
are(corrupted) due to the file size too big?

What is the best solution to fix her issue?

Regards,

Mervyn