Display incorrect accented characters!

[diabolik]

In language directory I have 2 folders: english and italian with inside english files language and italian files language.

OK
In Italian language there are accented characters such as é, è, à, ò, ù...

The default database charset is latin1 with latin1_general_ci and all tables have collate latin1_general_ci.

The index.html charset in language directory is charset=iso-8859-1
The index.html charset in language\englih directory is charset=iso-UTF8
The index.html charset in language\italian directory is charset=iso-8859-1

The accented characters appear so wrong. Exapme, the letter è is Ã

Someone can help me... please!

THANKS