I recently bought a Philips TV which I usually use for daily watching TV. My desktop computer is connected to HDMI1 for occasionally watching Full HD movies. The problem I experience is that every time I power on the TV it always switches to HDMI1, regardless of the input it was switched to when powered off. Furthermore, when I manually switch from Watch TV to HDMI1 it seems to force my computer to auto-detect the TV as a secondary monitor as my main monitor flickers and the Windows plays the default "Device Connect" sound.

I don't know if it's the TV, or my graphics card, or Windows, but it's really annoying and I have to solve it. My setup is Philips TV 37PFL5405H/12, ATI Radeon HD 5770, Windows 7, up-to-date drivers, firmware, etc. Please help!

Thank you.