error with variables after php 4.1.1 (but not priors)

Hi, I was using PHP 4.1.1 for windows without any problem. But I can't put a newer version into my server. In versions after PHP 4.1.1 if I pass a simple form value to a next php document, the value "loose" its value :-(. I haven't touch anything in php.ini file. Here the code example (that works successfully with version 4.1.1 and prior) where I've omited irrelevant code: <form name="form1" method="post" action="provaVariables2.php"> <input name="valor" type="text" value="Hello"> <input type="submit" name="Submit" value="Submit"> </form> In provaVariables2.php: <body> <? echo "The value is: $valor"; ?> </body> The result is: "The value is: " Thank you. Josep.