My computer locked up and I got "unexpected checksum error" and "unexpected c-tree error # 7716". The instruction at 0x77e778ce referenced memory at 0x008743d4. The memory could not be "written". I don't understand what all this means. Could someone explain what this means and tell me what I need to do to correct this problem. Soyo Dragon Plus motherboard, windows xp, 521MB Smart PC2100 x64.