Pocket Outlook mixes up my inbox folders

Hi.

Here's the deal: I have a new WM5 device (iPAQ rx1950) and I also have an
email account on an Exchange Server 2003. In that account I have a lot of
email categorize into subfolders of inbox.

When the device first syncs with the Exchange server, it gets all the
folders and the subfolders, and the subfolders of Inbox are in the Inbox
folder (where they belong). (Everything is just fine).

However, after I sync with the Exchange server for a few times (1 or 2),
SOME of the subfolders of Inbox appear at the same level as Inbox. This
happens even if I use the Desktop to sync or the WiFi connection.

So I end up with some of the folders used to categorize my email at the root
level!!! The funny thing is that I can still sync them!

Let me give you an example:
Before:
+Inbox
- Folder 1
+ Folder 2
- Subfolder 1

After:
- Folder 1
+ Inbox
- Folder 2
- Subfolder 1

Do you have any ideea of what is happening and how to make it stop?

Thank you!