Yes that does, sorry to hear. Def something happened last 48 hrs or so though, a blog of mine moved PR and a few of my internal pages on a site also moved PR.
Internal pages have gone from 0 -> 1 or 0 -> 2. Though my contact page has lost it's PR from 2 -> 0. Something has obviously happened between the 7th of August and now. Read the title...post something useful.
google definitely had an update, anyone saying otherwise is in denial these last two updates have been really inconsistent and not instilling alot of confidence in the webmaster world though
I stopped PPP on one of my blog and got my PR back but the last update it went back to zero again. Reason? I do not know!