PPRuNe Forums - Going back to a Pprune original page after reading a link.

On Pprune posts there are often links to a news item, accident report, a photo etc. After clicking on the link and reading it, suppose I want to return to the original post or page where I found the link. In the past I depart the link site by selecting the red cross at the top of the right hand side of the page. Before that I notice I don't have a green back arrow which would have brought up the original Pprune page. Hence the only way for me to exit the link is to hit the red cross. I thought that would automatically cause the screen to revert to the original page - but it doesn't. It knocks out Pprune and puts me back on my desktop where I have a Pprune symbol. So I have to find Pprune home - then find the original forum and then navigate my way back to the original post that held the link. Takes time when all I wanted was to finish with the link and return to the original page. Appreciate advice on this vexing problem. I have Microsoft XP Home.