Chrome's "Use hardware (GPU) acceleration when available" setting was causing problems on my ThinkPad. the GPU driver crashed occasionally, sometimes several times a day, particularly while using Chrome to watch videos on Youtube, Vimeo, etc. fortunately, the GPU driver would recover automatically after a few seconds, but the disruption was annoying to tsay the least. the crashing problems stopped after i disabled the GPU acceleration option. Chrome is also a greedy memory hog. i've seen some chrome.exe processes gobble up more than 2GB of memory, and that was just ONE TAB in the browser.
however, the latest 64bit build (version 39.0.2171.71 m) now seems stable on my machine. i've re-enabled GPU acceleration again, and no crashes so far.