Increased Performance Problems and Dropdown Menus Breaking

Hi All,

I have been experiencing a weird problem with Illustrator and have been enduring it for quite a while, hoping it is just a bug that would be fixed. But since it just happened again, I decided to grab a few screenshots and see if someone knew about a solution.

It seems that Illustrator launches perfectly fine, and everything is normal for roughly the first hour. Then Illustrator started becoming slower, with increased problems the more I keep on working. Eventually, it creates a black screen over the artboards, and then I know it's time to check that I have saved.

At this point, if you want to use any of the dropdown menus, it is blank (just white) and only reveals the options when you mouse over them. Even if you just want to close and use the save prompt that posts up, that is also blank (although you can guess where the buttons are, and they still work).

I have a fairly good computer and all my drivers are updated. I have uninstalled Illustrator, chose not to remember my preferences and deleted any leftover files. Unfotunilty, after freshly installing Illustrator again, the problem persists. The only way to temporarily fix it is to save and restart Illustrator until it happens again in 1-2 hours.

Since it is such a random problem, I understand a thousand things can cause it. I am just trying my luck to see if someone else experienced the same thing and maybe found a solution to the problem.

Screenshots attached of the menus being blank and only revealing when mousing over, the prompt that pops up when closing without saving first, and in the background, you can see the black screen it causes over the artboards.

I appreciate your time and advice!