Win10 64 bit; 24 gigs RAM; third-gen i7 CPU; ATI 79xx GPU
Broken: hash a0c1876
Short description of error
When you enable the rendertime dicing in the subsurf modifier (for displacement), the rendered view will show interpolation errors between the various patches (the F12 render meanwhile seems to be relatively unaffected). This also does not happen when displacement is being used without dicing.
Exact steps for others to reproduce the error
Open the .blend file and switch to the rendered view