[doveman2]

I ran into a problem after updating where all videos just gave a black screen and no sound, only flashing up a frame when I stopped or skipped but it turned out that the update had changed my audio from analog to HDMI and once I changed that back it was fine again.

Same here, only difference is that I use HDMI to HDTV.

I presume you mean that you use the analog for audio though, otherwise the audio switching to HDMI wouldn't be a problem (in fact it would already be on HDMI)?

I'm using the HDMI for video output (to a DVI input on my TV) and analog for audio, so if that's what you're doing then our setups are exactly the same.