After installing the newest version of the Logitech Control Center version 1.2.1, I am happy to report that the accelerated scrolling bug has been squashed! The feature now functions as it did in previous versions. What many find to be somewhat annoying is that Logitech still neglects to document what is new or fixed within these interim updates. For example, looking at the provided history documentation only mentions versions 1.1 and 1.2, and totally ignores versions 1.1.1 and 1.2.1.