We recently purchased a Gateway mini tower running Windows 7. I hooked up a LG Flatron monitor to it and have had no problems until recently. It works fine for hours (sometimes days) and then it loses power and shuts totally off. I then disconnect it from the Gateway and hook it up to Dell system and it works. I the drivers are up to date and I changed the settings to never turn the monitor off. Is there a compatibility issue? It works fine for a long time and then shuts off. Is it a power supply issue in the tower?