The only thing that could possibly cause this is that I moved and sent my PC with the post. I removed the graphics card into it's own box so it was protected from physical damage. I cannot fathom how the PSU might have been affected by the transit since most of it's parts are soldered on. Am I really having not enough power to run my card? The only change is that I upgraded my RAM from 8 gigs to 16 gigs after I unpacked my PC with the memory being completely different. Thanks for any help.