what about a 4th PC... is there an incremental cost or do I have to pay another $49.95 for PC's #4, 5 and 6 even if I only need PC # 4 ?
Technically speaking, yes, for 4 computers you need 2 licenses which cover up to 6 pc's. Is not always that expensive as you can get it at our friends at amazon dot com for a little more than $20 per license...