I have an early 2009 Mac mini and had it directly attached to my Sony Bravia HDTV via HDMI. The resolution was set to 1080p, and everything worked fine (I use Plex). Recently, I bought an HDMI receiver, and since then, the Mac mini sometimes switches its resolution to 1080i. I have to manually set it to 1080p again, which it then keeps for a while, but eventually will switch to 1080i again. Is there a possibility to lock it to 1080p? I'm thinking of buying a new Mac mini, which has a HDMI port, could this problem go away with the current model?