The new cloud textures seem to have the added benefit of fixing the 'tearing' problem. If you have a fast processor and a lot of RAM, try running at 'Accuracy over Speed' option in the Museum lobby Options menu; I've found this to help some also.
I usually run at 16-bit instead of 32-bit because it makes true colors for screenshots, but it also helps offset the extra performance load of 'Accuracy over Speed' option.