mobo: MSI K8N NEO4-F cpu: AMD Athlon 64 3000 keyboard/mouse: Logitech Internet Desktop Pro Black (PS/2) power supply: 450 watts (pre-installed in casing) Im building a new computer and assembling all the new stuffs that i brought. Everything works fine, except the keyboard and mouse issue. Here's the problem After a couple of secs or minutes, depending how long the system have been shutdown. The keyboard and mouse freezes, mouse starts to move erratic and also the num/caps/scroll lock in keyboard gets slow to respond when you press it and finally both PS/2 devices freezes. Even in BIOS i notice the keyboard will freeze in secs. or minutes. And sometimes it can't even detect the keyboard at all at start-up. My conclusions is that its kinda grounded, i disassembled everything and layed out the motherboard on a cardboard attached all the wires and everything that is needed... System went fine, i even waited like 30mins run 3dmark and problem never occured again. But at a time i put all things back together inside the casing, the same problem occured again. Keyboard and Mouse are really unstable, Luckily i made it to installing Windows XP SP2 and all the drivers needed in my build. It still works using USB keyboard/mouse, i already tried attaching other mouse/keyboard to the PS/2 ports, the same problem occured still. Im already annoyed shutting down the system again and again to activate the mouse/keyboard for just a short time. -Can it be grounded to the casing? -At first i thought problem is the motherboard itself, but how come it work fine when i layed it all without the case? -Can the front panel I/O connectors be responsible? -Is the plate that comes with the motherboard to be attached in the casing can be grounded? -How do u know if its grounded or not? Hope you can help me guys.