I've recently hooked up my Bravia 46" LCD TV with HDMI back to my PC using a DVI to HDMI adaptor. Every time the TV is turned on or off, or an input setting is changed, the monitor on my PC flashes black for a second. Is there a way to prevent this from happening, other than disconnecting the cable? I'm using an ATI Radeon X800XT graphics card. Thanks in advance for any info.