kamikaze_Optimizer - 5:46 am on Jul 14, 2006 (gmt 0) I hope this info is helpful to someone.
I do a weekday newsletter/digest on my site. The PR is showing for the June 9 - 11 (a weekend edition) which was posted early on the 9th. No PR is showing after that date.
Also, all new pages are showing a PR6 which is not correct for my site (the newsletters should be a PR3-4 on my site). The last update did this also.
I hope this info is helpful to someone.