Thanks to all of you for replying.  You have all made me feel better.
I was given this information about the short life of Inkjet Prints from a person in a commercial photo lab. 

I gave in to a moment of panic thinking that my pictures would all disappear in a few years.   

I keep my pictures in acid free storage till I can put them in albums.  I suppose that the only thing that I can do is back them up on CDs, and every few years or so reprint them.  I have been reprinting my old black and white photos that are getting faded and some of my old color prints too.
Maybe in a few  years time, we will have a better knowledge of how long these prints will last, and I suppose that newer and better products will also go on the market.
In the meantime I will take everyone's advice.  I will only use Epson Papers from now on.  I will scan all my pictures into my computer, which will  be a big job, but in the end worth it as I can put them all on CDs.  My scanner is very good and seem
s to always be at maximum resolution.
Hi Trish,  It is cheaper to have new pictures done at professional labs, but I am using my printer to do individual new photos and reprint and hopefully restore old ones.
Thanks again to everyone who answered.
Maple