I am having trouble with installing the firmware. i did exectly what the tutorial said. The error that comes up when i launch firmdl.bat is: Exception in thread "main" java.lang.NoClassDefFoundError: js/tools/Firmdl
i set all variables correctly without issues, have the correct JDK installed and i set RCXTTY to usb. I hav no idea why i am getting this messege.
PS: For uploading programs the RCX, try using Bricx Command Center. I have heard it is really good.