+118687 I'm just going to try enclosing the quadratic formula in dollar signs and see if that helps.
If if helps for me, which I think in might, does it cause display problems for other people?
Let me know.
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a} \qquad \text{No dollar signs}\\ \)
\($x = {-b \pm \sqrt{b^2-4ac} \over 2a} \qquad \text{Added dollar signs}$ \)
I have also discoverend that I do not need to go into LaTex box to do this, I can just type it straight in!
$x=\frac{1}{2}$ this is just typed straight in, now I am going to see what happens.
It worked perfectly!!
+118687 I think I have found the problem! Well maybe anyway,
I had a 'Tex all things' extension on my Google Chrome browser.
I went looking for it when I realised that normal articles were being interpreted as LaTex!
Heavens only knows why that was there, but I am already thinking about how I might make use of it in the future!
I Have disabled it and I think/hope the problem is solved! 
+118687 Hi Hectictar,
My son was laying the pavers around the pool. I was trying to help him with the layout.
I did this in Geogebra but it really needed to be done in a CAD program.
I learned how to use Geogebra a little better while i did it though.
The pavers turned out to be quite different in size so it was not directly usable but I did discover some some layout problems in the corners which I think help in the planning.
Ultimately he worked it out on the ground as he went. It came up really good too. :)
Oh, I just used this pic because it was handy, not for any other reason :)
