Has there been any progress on this in the last year? I'm having the same problem. Bought a vag-com cable off Amazon, spent a few hours futzing with the drivers and such so now both ecuflash and rr are happy (I can read and flash, and I can log as long as I'm not WOT >~4500RPM). But, as with the guy above, all my logs seem to cut out between 4-5kRPM and then come back after the pull is over. RR doesn't crash, and has no trouble continuing to log once the ECU starts responding again. I've tried 2 and 4 ferrite chokes on the cable, and it still doesn't work. I can drive around to my heart's content, but the second I go WOT and let it pull, it dies...
This on an Alienware Windows 7 home edition laptop.