A little more detail please, What firmware you got on the box, look in system info and type back what it says, what does it do when you press Pause? recording can take some time to start especially when the hard drive is empty, I find the more I have recorded the quicker it starts. (Dont ask me why).
You need to flash your box with the latest firmware, you will find the eurovox flashing guide under my picture, when you have flashed it you should be fine.