hello.. i'm new here... and i need some help... my computer is AMD Athlon 850Mhz... i'm using genious keyboard and a4tech mouse... 3 days ago, we decided to replace both since they are old enough to retire... so we bought a brand new generic keyboard and generic optical mouse, but after installing these devices during startup (counting and detecting devices) i'm hearing a continuous beep sound and it will stop when entering windows xp but i keyboard and mouse are not functional... please help!