Hello, have : ASUS M2A-VM-HDMI Motherboard, and AMD ATHLON X64 3GHz CPU (ADX6000IAA6CZ) NVIDIA GEFORCE 8500GT GRAPHICS CARD Motherboard manual recomends Windows XP or Vista, but DOES NOT State for 32 Bit or 64 Bit ? Would I have any issues installing XP Pro-64 Bit edition ? before I order, I'll appreciate if someone can clearify this and advice me.. Thanks.