Hello friends One of the link page of my was not cached and was not having any PR, suddenly today it showed me the PR 4 and when i checked cached date from Google toolbar, in it its showing me entirely different page of different web site, when i checked PR of that page its also 4 . and one more interesting thing is when i searched in Google search engine for that particular URL its showing me two URL's one is mine and the other site which is been cached through Google toolbar. Can anyone tell me why its showing like this in cache? can it harm my site in any way?
Dont sweat it, your site is fine. Google cache is not always updated correctly, it will fix itself over time. Also about the PR change, I dont think there was an update recently, but i'm not to0o sure.