Hi all. I've just invested in a lovely Mac Pro 2008 and got it up and running with High Sierra 10.13.4. Except I have this VERY big problem with my GTX 750 ti (which was working in my Mac Pro 1,1). I'm getting lags and UI glitching everywhere. When dragging a window, it lags terribly, very choppy / interlacing issues. I'm using the most recent version of Nvidia web driver and even tried rolling back, to no success. Login screen flickers with black / white bars and transparency problems basically everywhere. I've come to learn that this is something to do with the recent update to 10.13.4 as I have found threads on other sites (mainly hackintosh sites) with regards to this issue. For example: https://www.tonymacx86.com/threads/...s-high-sierra-10-13-4-387-10-10-10-30.249039/ However, the problem remains, and there's so many pages in that forum that people end up talking about all sorts of stuff, mostly unrelated. I really need some help with this, so if anyone is having the same problems or has a solution, please comment!