Hi, Last time people on this forum were brilliant with three separate issues I had at the same time, so I have come back to ask for help again if that's okay. (I'm unlucky with PCs.) Last night I left a game running (Broken Sword - Angel of Death) on the load game screen, then wondered off for a few hours. I think the game has a few memory leak problems, but maybe someone skype-d me etc to cause the crash, but when I came up later, the PC was off. The PSU had tripped, as has happened before. It wasn't coming back on, for more than a split-second, and so I had to fetch a new one (also happened before). The problem is with the new one installed the monitor will not show anything on the display. The fans are going round, but there is no windows login sound from the speakers. I'm afraid something else is broken. Does anyone have an idea? Specs (old PC): Athlon 3000+ AsRock K7S8XE+ 1 GB DDR 2700 Ram (2 sticks) 1 case fan, 1 cpu fan ATI x850 Pro 256 MB 2 IDE hard drives (one is very new, replaced a dodgy SATA drive) Power supplies: Old - Mercury 400W New - SumVision 450W Thanks for reading Edit: Mods feel free to move this to where it might be more relevant.