XML parser error in firefox

[sunilsukumar4u]

I was working in a windows application where I need to generate a sample report. While forming my report, I was to get a input from a hardware which seems to be a string (it is some encoded string in some language not sure what??).
I drafted my xml with encoding is-8859-1.

>><RESULT_DESCRIPTION>HardwareIds String:<![CDATA["????Hc?t?"]]></RESULT_DESCRIPTION>

When i opened the xml in firefox, i got an error saying xml not formatted well pointing at the boxes in the string. but when i opened the same in IE, it did not generate error but printed the contents as it appeared. I also want firefox to do the same. I am not concerned of the string type or the encoded form. But i want it to be displayed with out error in firefox. My user uses only firefox. Is there anything I can do for my firefox to accept the data. I use firefox 7. I am just two days new to the xml. So any help with explanation would be fruitful .

Thanks in advance,
Sunil

[Dormilich]

do you define the XML encoding to be Latin-1? the default encoding is UTF-8 and some misinterpreted Latin-1 characters may result in invalid UTF characters (see below) which leads to invalid XML.

from the specs

/* any Unicode character, excluding the surrogate blocks, FFFE, and FFFF. */
Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]