Lighting problems

[Danimita92]

Hi everyone!
I’ve recently bought a new laptop, and some strange things have been happening with my project. It’s something to do with the lights.
This first image shows how simple light cookies aren’t working properly:

And this other image show a weird thing some lights are doing, where their radius can be seen as a black silhouette behind other objects.

I’m assuming it might be my laptop (it’s Windows 8 64bit, Intel® Core™ i7-4500U, NVIDIA GeForce GT 740M) seeing as both the editor and the builds appear to have these problems

Any idea what it could be? Would updating Windows to 8.1 fix it maybe?

Thanks for your time!

PS: I’m using Unity 4.3.3f1 Pro

[Danimita92]

Here’s another example of what I’m experiencing. This time, it’s a spotlight:

[Danimita92]

Nevermind! Updating to Windows 8.1 seemed to fix the problem!