Radeon HD 7870
intel i7 4790k
ask if you need any other details. Rest is overkill, and irrelevant.
I had an nVidia GTX 780ti that broke last week. Got this 7870 in the meantime while the other is getting repaired.
I currently have some weird black borders on my screen that prevents me from using 100% of my screen. I know this is an option on AMD Catalyst. For some reason, whenever I try to install AMD Catalyst, I get stuck at 'detecting graphis hardware'. I googled it, and found a few different posts about it. Tried many of them, nothing has worked so far.
Help me out, please.