After upgrading Zimbra 5.023/SLES10SP1 to Zimbra 6.0.7/SLES10SP3
mail vanishes in folders ( network & community same) :

1) I collect backup-mails from ibm-tivoli , every moring they go in one folder. The display says,9 new mails in the folder, you click into the folder: there is ONE mail & after deleting this , the "9 new" vanishes. Where are the other 8?

2) I have a folder with company letters ( complaints about not functioning industrysoftware:-) ). 4 mails are in. the folder. I get as new one, move it into the folder & Whow the folder is empty.

Thats the way I like it.
Can somebody confirm? Any ideas what to check?