The $4.15m 'lost' from the upcoming Q1 (its actually just being moved in to previous quarters so previously reported revenues will go up) represents .8% of the forecast full year revenues and the company is saying that the accounting change will have no material impact on Q2,Q3 or Q4.
I find it hard to believe there is anything dubious going on here because it appears they have been understating revenues. Ok accounting errors are never good news but it only appears to be a timing issue, it hardly deserves a 9% sell off!
Calm down. They have had to adjust how they recognise revenues and will have to recognise them a bit earlier than previously. So there will be a timing shift in revenues. Not a big deal as long as on going service contracts are still being signed at a decent rate. I suspect it will tend to increase recently reported revenues.