[Phpgroupware-users] calender and forum problems

[Oliver Tings]

Hello!

I have problems by using the calendar and forum applications:

forum:
If a user wrote a message into a subforum and will be deleted by the admin, 
every user will get the following errormessage by accessing this subforum:

----------------------------------------------------------------------------------------------------
Database error: Invalid SQL: select 
account_lid,account_firstname,account_lastname from phpgw_accounts where 
account_id=
MySQL Error: 1064 (You have an error in your SQL syntax near '' at line 1)

File: 
/usr/local/httpd/htdocs/phpgroupware/phpgwapi/inc/class.accounts_sql.inc.php
Line: 400

Session halted. 
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It's obvious, that the account_id isn't valid anymore, because it was deleted. 
But there's no way, to access the subforum, unless I delete the threads...:-( 

calendar:

By entering a repeating event, the participants only have the possibility to 
reject(accept...) all events, but not a single event at a special date....
The database only saves one id for repeating events....!?!

Are there any solutions or workarounds for these problems?

Any ideas?

thank you,

Oliver