Hi!
If I put national chars in graph name, instead of national chars and special symbols (for example - ?,?,?,?, degree symbol etc) the squares are displayed.

I tried to use one solution found on internet by adding the lines

$string = mb_convert_encoding($string, "HTML-ENTITIES", "UTF-8");
$string = preg_replace('_{^(&([a-zA-Z0-9])}',htmlentities('${1}'),$string);

to the function imageText in graphs.inc.php; but that solved just a half of the problem - national chars are displayed correctly, but not the symbols (it seems there is no entity mapping).

Where could I look in order to find the root of the problem?

Janis

P.S.
GD info:
gd
GD Support enabled
GD Version bundled (2.1.0 compatible)
FreeType Support enabled
FreeType Linkage with freetype
FreeType Version 2.4.11
T1Lib Support enabled
GIF Read Support enabled
GIF Create Support enabled
JPEG Support enabled
libJPEG Version 8
PNG Support enabled
libPNG Version 1.4.12
WBMP Support enabled
XPM Support enabled
libXpm Version 30411
XBM Support enabled
JIS-mapped Japanese Font Support enabled

Directive Local Value Master Value
gd.jpeg_ignore_warning 0 0

php configure options
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