Hi all my pc was working fine last night i went to switch it on as normal today and nothing came on screen, i have it connected to a HD tv an cheaked the HD cable was in correctly an even changed it from HDMI2 into HDMI1 and still nothing happend , theres a green and orange light stat stay on aswell, ino the green one should be on as its to indicate the power i guess? but the orange on im not shure what this means? iv read on other sites people changing there power suply unit but its not even a year old so could this still be the problem? its running windows xp home everything on my pc is quite new as i upgraded it all at the same time and had no problem untill this. i cannot do anything on my desktop as i cant see what im doing all that comes on my hd tv is no signle,i tryed pulling the graphics card connector off an puttin it back on to make shure it was on properly but still nothing so if anyone could help that be good thanks guys .