http://bugs.winehq.org/show_bug.cgi?id=12879
--- Comment #1 from Dmitry Timoshkov dmitry@codeweavers.com 2008-04-30 01:16:42 --- (In reply to comment #0)
I get the error message "The cluster size in this system is not supported."
That's not a Wine message.
when trying to install fonts (arial.exe) which has worked for me before.
You need to figure out which system component reports the error above.