Hi dromas1. Is your HD4200 an on board GPU? What are your pc's specifications including OS? I have just recently connected my home built HTPC via HDMI to my Yamaha receiver. It is kind of tricky in a few aspects, but it may be possible for you. It all depends on your GPU specifications. My specs are: AsusM4A78L-M mobo (onboard HD3000 gpu plays blu-ray fine with Coral WinDVD2010pro), I upgraded my graphics to a discrete HIS AMD 5670 gpu. I have the HDMI from the discrete 5670 gpu connected to an HDMI input on the back of my Yamaha RX-V471 receiver (I, also, have my Directv box connected via HDMI to the back of the receiver). I have 5.1 surround Polk speakers. The receiver has just one HDMI cable going from it to the ARC HDMI input on the back of my Samsung 55" TV. The tricky part is getting the AMD HD audio driver installed. The driver provided by Windows7 64 bit os wouldn't let Catalyst Control Center v. 11.11 install the AMD HD audio driver. I did get it figured out and can walk you through it if need be. In a nutshell, you might have to dig through the ATI folder on you C: drive and manually install the AMD HD driver. I watch blu-rays, listen to music, and my husband plays Dirt2, SplitSecond, and F1 2011 on this rig. Last note about Yamaha receivers and AMD HD audio driver. If you set your receiver to HDMI Standby Thru, you may have to reconfigure your driver when you want to use 5.1 or HD audio.