Absent-mindedly just pressed "Update Now" on my Garmin 530 the other night. It updated it to software version 7.00 but then as soon as I turned it on again it made my ride on my turbo go crazy! Straight away the turbo (Tacx Flow 2240) turned jerky and then the metrics all vastly inaccurate. I was doing 22 mph when apparently at less than 50% of my FTP! I don't really use the smart aspects of the trainer, i just like to increase the power through gear changes, so I don't need any extra resistance coming through from the turbo but whenever I now try to adjust the turbo via the "indoor trainer" it either becomes really easy of a complete grind. All I want is for the turbo to go back to normal - as it was before the new Garmin update. Any ideas anyone?