The blogosphere was buzzing Thurs over a BroadbandReports story that Comcast will implement a 260GB/month cap for HSD users Oct 1. Quoting an anonymous source, the site says the MSO could make the announcement official any day. Sources confirmed earlier this year that Comcast was considering such a plan. 250GB is a hefty amount of bandwidth—with a typical HSD sub using about 2GB/month. — The mtn. ‘s launch on DirecTV began inauspiciously Wed when numerous subs couldn’t access the net because of technical difficulties. As late as Thurs morning the RSN’s site displayed a message apologizing for the problem, which a Comcast rep said stemmed from difficulty DirecTV had in updating their set tops. The issue was resolved, in time for the net’s football season openers.