This didn't happen a few days ago but today and I've experienced this on 2 pcs - when I am building or maybe it's happening regardless of if I am building, but the game locks up completely then comes back then locks up and is just so slow I have to exit out. I'm not reinstalling the problem is occuring not on just 1 pc but on 2. Two different pcs+problem=not an issue on my end. I run and do higher end work within other gaming engines, I'm fine, I'm updated. This might be a derivative of the many problem below this thread I am reading anyway.
The only other thing I can think of is my neighbor who bought up the entire sim but my little area and is putting up ugly pictures to make me leave (sell my land off which I won't), did something with a script possibly. I run some vistor counter and the person is on my land QUITE a lot. Maybe Linden can come check the area, sim I am in and see if anything suspicious is going on.