Can't grab and scroll bars, highlight text or move objects

As the title says, something has happened all of a sudden where I can't click on the scroll bar with the mouse pointer and move it. The only way to scroll now is to click above or below the bar.

In addition, I am also unable to highlight text by clicking and dragging.

And finally, I am unable to click and drag anything, like an icon or a video in a editing program.

Its sytem wide. Every program. I have no idea what I've done or how to fix it. I need my computer for video editing and this makes it completely untenable.

Please help!

Nope. Doesn't help. Obviously was the first thing I tried...as well as googling a million other variations and different things. No helo. Hence why I signed up to a forum to try to get answers...

And just to be clear. Its not that I can pick up files/icons and then they snap back. Its just like I'm not even clicking. There's just no response at all.

Thats a good point. I need to try that. Hmmm. I'm going to have to dig deep to try and find a mouse...

Im just use the pad...which is what isnt working. If i find a mouse to test with it'll be wireless optical mouse.

Okay that wasn't that bad. Found it straight away. Aaaaaand..... the wireless optical mouse works fine. So something has happened to the touchpad. Not sure how to correct it just yet.