PS3 System Software Update (v2.41)

Reported at Sony's Playstation web site....

Hi, everyone. As many of you know, we released PS3 firmware update v2.40 last week, but had to take it offline temporarily because, for a limited number of users, the XMB wouldn’t display after the update was installed. We’ve been able to fix the problem, and I’m happy to report that firmware update v2.41 will be released shortly.
We want to extend our apologies to the PlayStation community for any inconvenience. Now we’ll be looking forward to seeing everyone online and racking up those trophies!

I have not downloaded this update [or v2.40 thankfully] so I don't have any first hand experience to share but I'll pass along info as I learn it.