Hi Currently I am running Windows 7 ultimate 64bit version Computer Spec: Asus P5nmx board 4gb ram 250gb sata hard drive intel duo core lg burner medion burner, nvidia gefore 9400gt G-card Thermaltake Sonic Tower heatsink (8inch in hight) 2 80mm fans 1 -120mm fan(1 inch away from the heatsink) my problem is that a few times a week my machine bluescreens with - AFD.SYS and an error code. i have already tried LSP to find any winsock issues,none found - tried device manager - nothing missing or needing any drivers,no problems has anyone any ideas? thanks in advance Rob