I have a hp pavillion 500-214 desktop brand new. it has amd catalyst on it. i run a vga cable to an antec powered video splitter box. when i try to select the pc on my samsung flat screen it shows no input and shuts down. I also have a 24 inch hp lcd flat screen and a generic flat screen that show the diplay is working off the splitter. i have had this system in place with a lenovo laptop for 3 years but when i hooked up this computer that is dual screen capable the flatscreens no longer worked. checked all connections and they are fine. any suggestions
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