Ok, so apologies to any Rocky Horror fans out there...
Recently acquired an Onkyo NR609. The HTPC (Win7MC) is sitting downstream of this, connected to the PC input (DVI-HDMI cable with audio running thru it). Upstream is a Sony LCD (bog-standard HDMI connection to the receiver). Everything is running at native res (1360x768 - LCD is not full HD), and most of the time it works perfectly.
However sometimes when watching TV or a video, the display on the TV jumps about 60mm to the left - the whole thing gets offset. The only thing that can be done to correct it is to change the HDMI input on the TV to a different one (which thanks to HDMI-CEC seems to also change the HDMI input selection on the receiver). When it is changed back the image goes back to where it should be - but sometimes it jumps again a few mins later.
This didn't happen when the TV was connected directly to the HTPC via the same DVI cable, so I don't think the problem is at the source. Receiver has got latest fw from Onkyo.
Anyone got any thoughts on this? Any Onkyo NR609 owners out there with HTPCs having (or not having) the same problem?