Another plug for this solution- 9 years later
I was getting this same error intermittently - I've been chasing baud rates, sampling rates, variable count, etc. All i had to do was unplug my cluster fuse (#11 on mk4 jetta) and I can log like a mf now.
many thanks!
And I recommend using VisualME7Logger or DrageEngineAnalyzer on top of ME7Logger- because running around without an instrument cluster is unsettling when you're trying to do WOT pulls...