Encoding problem with cookies

[nicknack]

Hello,
I'm trying to read data from a cookie (In hebrew) but I got just
garbage.

The read and write are like this:
myCookie["aa"] = ServerEncode(TxtBox1.Text);
TxtBox1.Text = Server.HtmlDecode(Request.Cookies["myCookie"]["aa"]) ;

I tried all the combination of decode and encode in the read and write
but the result is the same.

When I'm opening the cookie in notepad its look right and the data is
in hebrew.
Also - when I'm running the application on my local pc its look good
and it read the cookie in hebrew.
Only on the server it can't read it well but I don't see any diffrence
between my pc and the server.

I'm using fw2, c#.

Thanks!