The hacks i've installed are:
ubb codebuttons
who's online
icon hack
hypercells
edit hack
IP hack
preview
cosmetic hack
anchor hack
avatar
memberlist
ubb poll
statistic hack
chat
custom status hack
print page hack
Aim/ICQ
StickyThreads
Mood selector
Glowing names
Systran translation
Icon pulldown menu
Thread integrated Poll
Kalender
Email autoreply
Quick reply hack 2
Smilie2 hack
IP icon
Newsfader
Photo album
Rate topic
Star status hack
Flag/astro
Chatbutton in display
Galaga hack
IP on intro
Mod dropdown
Time-date on intro
MSN hack
avatar addon hack
Posting History
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The hits simply don't show up and also the notification "read" in the link is not visible.
It's maybe obvious that it has something to do with one of the other hacks on the ubb.