I have recently upgraded my computer with Intel i7 processor and I am using Gigabyte ga-h55m-ud2h motherboard. In my computer all the things were working properly. I am using windows 7 in my computer. Suddenly my computer stared giving me one annoying problem. Now whenever I start my computer at that time my computer starts properly but I cannot see anything on my monitor and my computer gives 2 short beeps. Now please tell me what I should do to fix this issue.