Just registered, and then ran the system check to make sure my Ubuntu laptop can watch the webinar: Operating System Failed We have detected that your

Just registered, and then ran the system check to make sure my Ubuntu laptop can watch the webinar: Operating System Failed We have detected that your operating system does not meet the optimal webcast specifications for listening to and/or viewing webcasts. We recommend the following operating systems: Windows 7 or Windows XP SP2, and Mac OS X 10.4. Please note that users with older versions of Windows (Windows NT 4.0, Windows 98, Windows ME, Windows 95), Mac, Linux, and Unix operating systems may or may not experience difficulties listening to and/or viewing webcasts. Please contact your network administrator regarding any operating system upgrades. Surprising from O'reilly, but I guess that's an artifact of choosing Flash for this.