Wow, i wrote a thread on here this morning about my site getting to a PR5 and my other sites losing PR. I have just checked my sites again and my site that got a PR5 is now back to a PR4 and my sites that lost PR are now back up! Is this the norm for a google update? This was my earlier thread by the way: http://forums.digitalpoint.com/showthread.php?t=152220
It hasn't settled across all of the datacentres yet. Updates seem to be taking longer and longer these days.
It means your site still is a PR5, it's just not been exported to all of the datacentres, it depends on which datacentre you're pulling the results from at any one time. Check them all here - http://livepr.raketforskning.com/
Yeah, Its like my directory is pr4 in some countries but not in mine yet, also livepr has 199 datacenters insted in 69 now!!
The same thing has been happening to me for two days: sites that had one page rank are going to a new page rank and back again. Sometimes a simple refresh of the browser shows the difference. Last time this happened I believe it took upwards of one week for everything to settle down. I imagine as the internet continues to expand, that updates will take longer and longer to accomplish.