Prosper under maintenance - again

As of 12:12AM (PST) Prosper's website is down for maintenance. Prosper has had several outages over the past two weeks. Some of these were scheduled outages; other were not planned. I don't recall seeing a message about this outage so I'm guessing that it was not planned. At least it is in the middle of the night during a time of lower bidding activity. I do remember reading in the forums a few days ago that an unnamed hardware component was replaced and they did not anticipate any more unplanned outages. Once the forums are back up I'll link to the relevant posts. This is the message that I am currently greated with on the site:

Prosper Under Maintenance

In an effort to better serve you, we are currently making enhancements to our site. We appreciate your patience during this time, and encourage you to return shortly.

While the site is under maintenance, none of your information will be lost or forgotten. Listings, bids, and loan servicing will continue during the maintenance period.

Thank you for your patience.

Best regards,

Update: I'm checking back now (an hour later) and the site is back up. I'm unsure how long the total outage was.

Update #2: It looks like this was scheduled. I didn't see it, but they ran this message yesterday, "Maintenance notice: The Prosper site will be taken offline for maintenance at 10:00 PM Pacific, July 1, 2007, and should be back online by 1:00 AM." Thanks to senator in the Prosper forums for the tip. Also from the forums - Loanchip caught a somewhat humorous screenshot of Google's search result for Luckily, this has already been updated.