google chrome doesn't start sometimes..

Good day all, Sometimes when I click google chrome, the cursor starts bouncing and i get a chrome entry in the task manager, but after about 30 seconds its stops bouncing and the task manager entry disappears, and nothing else happens there is a chrome running when i do "ps -e", just nothing on my screen. its not every time, i would say 9 times out of 10 its fine, but just every now and then i have killall chrome and click it again, then it'll start. I wonder if this happens to any one else Martin Fedora 17 x86_64, KDE 4.9.1