Hey Otto. I have the XFI I bought back in 06 ? I cam with a disk version 1.10. Anyway new laptop and it has windows seven and I need a upgrade on the xfi. I haven't really driven the car too much since you put that tune in in BG. Had it out couple days ago and service like came on and fell on its ass . . pulled over cleared the code and parked it. I wanted to data lode it but my new lap top wont connect. I think i had to install a driver usb also but not sure. any updated for my older xfi for windows 7? I went on the webside ,I just didn't want to load the wrong one. ****,It's been a while and I think I forgot a lot of Buick stuff.