Sometimes during browsing the internet or typing stuff (even here), some blocks of the page disappear and overlap each other. They sometimes overlap the text im typing or text in articles im reading, and require a scroll either up or down to fix the issue.
Why does this happen and how can I fix it ?
- OSX 10.8.2
- 16GB 1600 MHz DDR3
- 2.6 GHz Intel Core i7
- Integrated Intel HD Graphics 4000
- Discrete NVidia GT650M
- Safari v6.0.2