irssi/bitlbee annoying status change messages

hi,

I'm new to irssi and i will use it as im for jabber and icq network in 
combination with bitlbee.
configuration all went fine but now i find, that the status-change 
massages do annoy me very much:

someone [someone@someprotocoll] has joined&bitlbee
17:37 -!- ServerMode/&bitlbee [+v someone] by localhost
17:42 -!- ServerMode/&bitlbee [-v someone] by localhost
17:43 -!- ServerMode/&bitlbee [+v someone] by localhost

i went through and set almost all config options, including /unnotify, 
hide_server_tags, activity_hide_targets, but all for nothing and the 
ServerMode messages are constantly swapping my window.

Couldn't find information on line.
Anyone anything?