Help with Java extension

Hi I'm having trouble getting my Java extension to work consistently with Apache. Everything works fine for a minute or 2 before it just dies and says "Unable to create Java Virtual Machine...", etc. Also only one browser window will show the working PHP script at a time. My configuration is Windows XP, Apache 1.3.24, PHP 4.2.2, Sun JDK 1.3.1. My php.ini looks like this: extension_dir = "C:\windows\system32" [Java] java.class.path = "C:\php\extensions\php_java.jar;c:\php\classes;." java.home = "C:\jdk1.3.1\bin;C:\jdk1.3.1\jre\bin;c:\jdk1.3.1" java.library.path = "c:\windows\system32" java.library = "C:\jdk1.3.1\jre\bin\hotspot\jvm.dll" Any suggestions? Thanks in advance Luke