ok so im finally at the point where im ready to start the car....load c-comp software on laptop with vista ....driver for usb adapter....get online with computer,load startup program,try to start,turns over no start....ok turned key off,turn back on now wont connect with xfi.....try reinstalling usb adpt drivers , nope,try different adpt,no,try different computer running xp pro with serial port ,nope, try usb adpt still nothing......checked comports everythings matched up...tried changing comports still will not connect....called f.a.s.t. tried what they told me,which i told the tech on phone i had already done....but still nothing.........what is going on? anyone had an issue like this.....please help,need to get car running asap......any insite would be greatly appriciated.....yes the xfi has power to it ....thanks ,joel