TRIM and EXTEND and other problem

 From:  inve (INVERNOMUTO)
2806.1 
It's a few day that my copy of MOI dosent work fine.
in particolary the command TRIM and EXTEND

here a screen cast
http://screencastle.com/watch/054e5eca0e24639cd23db82eceb46175
or
here

http://www.forge72.com/img/2009-07-22_2324.swf

when i use this command nothing happen!!
the CONFIRM dont work (right mouse or enter)
pleas i help me!!

unistall and re-install dosen't work

ps
sorry for my bad english

Alessandro

EDITED: 22 Jul 2009 by INVERNOMUTO