Steff, I've been trying to post an answer to your P.S. for ages but the site won't let me -- I'll try one more time. As you can see from my answer above I've had computer trouble (that seems to have hit several of us recently). It's not until you can't use something that you realise how often that you do use it. My tower died due to overheating --the machine was over 10 years old; I took it to a techie to see if it could be repaired, but he said that when he tried to power it up the motherboard screamed -- sounds like something from a horror movie ! So I've had to splash out and buy a new system; out with the old TV sized monitor and in with a new flat screen. Well, it's nice to know that my absence was noticed, but I'm still in the land of the living, enjoying our beautiful spring-like weather of late. Regards and best wishes to all.