I'm very glad to see arstechnica using the blurbusters tool for testing monitor rate! You should be, it's a good trick and at least uses external hardware whic

I'm very glad to see arstechnica using the blurbusters tool for testing monitor rate! You should be, it's a good trick and at least uses external hardware which makes it more trustworthy than trying to measure what the system is doing from within the system. (e.g. 'it can be confirmed with apps that measure your refresh rate') Usually that's fine, but still a 60Hz refresh doesn't mean that whatever program is rendering onto the screen is capable of getting 60 frames per second effectively being put out by the screen without dropping any frames. Which is ok for most everyday usage, but e.g. for neurosciences doing research of the visual system that is hardly sufficient. You really want to be 100% sure that whatever you tell a program to display, it does this correctly frame by frame. And the only way to make sure that happened is to use external, continuously recording, hardware (photodiode or high speed cameras).