diff --git a/firefox-regional/fanboy-adblocklist-cz.txt b/firefox-regional/fanboy-adblocklist-cz.txt
index 3a9023c43..9e9ac6f9b 100644
--- a/firefox-regional/fanboy-adblocklist-cz.txt
+++ b/firefox-regional/fanboy-adblocklist-cz.txt
@@ -1,7 +1,7 @@
 [Adblock Plus 1.1]
-! Checksum: pLVViMjDz6aBJzi0MEqThg
+! Checksum: /vsriY7O1OKKPO9YqdZqDA
 ! Fanboy's Czech-addon Adblock list 
-! Version: 023B Updated: 23 Apr 2010
+! Version: 023B Updated: 27 Apr 2010
 ! This list expires after 5 days
 ! License: http://creativecommons.org/licenses/by/3.0/
 ! Contact: mp3geek@gmail.com  http://fanboy.co.nz/adblock
@@ -44,7 +44,7 @@ _clickthru.swf?
 ||idnes.cz/js/ad/
 ||idnes.cz/r.asp?
 ||ihned.cz/img/_flash/
-||im.cz/ad/
+||im.cz/ad/$image
 ||intext.lookit.cz^$third-party
 ||n.hyperinzerce.cz^
 ||naseadresa.cz/cz/$subdocument
diff --git a/opera/urlfilter-cz.ini b/opera/urlfilter-cz.ini
index 1ebf33e1f..03849f696 100644
--- a/opera/urlfilter-cz.ini
+++ b/opera/urlfilter-cz.ini
@@ -13,7 +13,7 @@
 *.espoluprace.cz/affiliate/*
 *.idnes.cz/js/ad/*
 *.idnes.cz/r.asp?*
-*.im.cz/ad/*
+*.im.cz/ad/*.gif
 *.lt/banner/*
 *.naseadresa.cz/cz/*
 *.observer.cz/?*