Recently I started using excel 2007. From last week I am faceing following problem

Problem No. 1
Home and Ctr Home have been swapped

E.g. If I am in Cell D6 then by pressing Home I should go to A6 but now it takes me to A1 and if I press Ctr Home then it should take me to A1 but actually taking to A6.

Problem No. 2

While editing long text in a cell (e.g. C7) which is Wrapped text and showing in 3 lines like this

It should
Be included
With data

Now if I want to edit it and press F2(in C7) then cursor rest at the end of text, now if I use upper key then it exits the edit mode and go to C6 and if press down key then it go to C8

Check your Scroll Lock.

I have checked it. Doesn't make any difference if scroll lock is on or off