Annoying Safari problem...

Hi Guys, I'm new to Macs so not sure if this is an isolated problem but in Safari, when I highlight text and try to type over it, the cursor just stays there and blinks as I type. For instance in the search bar, if I have a search term in there already, and want to change it, I'll highlight the text from right-to-left, without clicking and as I type it just stays there. There are two ways to solve this; firstly I have to manually click after I highlight the text I want to replace, or I have to highlight from left-to-right.

I'm not sure if I am making any sense, or how to even go about correcting this problem, but I'm just trying to highlight and replace text without clicking as you would in IE or Firefox.

I hope someone understands and can offer some help. Thank you.

 

Hi Jessica, yeah that's exactly what it is. It doesn't register after highlight. I have the uni-body Macbook.

In Firefox you can highlight a text and then type over it, but in Safari this isn't possible with the Macbooks at least, you have to highlight and click.

Am I making any sense? Surely there must be a way to fix this monstrosity?