When I visited your web page (http://tech-nikos.gr/cgi-bin/test.pl), I was able to get a sensible display by telling my browser to treat the page as iso-8859-7 (greek). But I gather you want the text to be in utf8, which I think would be a good idea.
As you follow moritz's good advice, you have to respect the docs regarding Encode::from_to(). Here's an easy way to do the required loop in a single line of code:
Encode::from_to($_, 'ISO-8859-7', 'utf8') for (@menu_files);
The reason why the path strings are showing up fine is because they are just plain ascii characters; it's only the file names that are non-ascii, and if the web server and browser don't agree on what the encoding is for those non-ascii characters, it's just noise.
(updated to fix grammar in first sentence)
Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
Want more info? How to link or
or How to display code and escape characters
are good places to start.