Hi Wee Hugh,
Argh! I fell your pain, and I'm sorry to say that it is caused by a security "feature" that is designed to cause some types of web browser from certain operating systems to have to go through a Capthcha. I'd rather not say too much about it publically, as it's a security, in the same way as I wouldn't give details of our house alarm system.
Broadly speaking it keeps a massive lot of the automated bad guys out completely, and then legitimate users can still get in, but unfortunatley only by getting through this Captcha. It's a pain in the neck for you, I know, and I'm sorry.
If you download another type of browser for your computer then you should hopefully be fine.
This topic is locked just to avoid it growing arms and legs and walking off into loads of other directions, but if you'd like more help Wee Hugh then please do PM me.
My apologies again,
Trystan