Error trying to run hokuyo on groovy

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I haven't used ROS for about a month to two months, and before this, I've managed to get hokuyo working fine. But just yesterday, I tried to use it again but failed. I run roscore, then in a new terminal, run rosrun hokuyo_node hokuyo_node, but I'm faced with an error:

[ERROR] [1389842311.466153862]: Exception thrown while opening Hokuyo.
buffer filled without end of line being found (in hokuyo::laser::laserReadline) You may find further details at <a href="http://www.ros.org/wiki/hokuyo_node/Troubleshooting">http://www.ros.org/wiki/hokuyo_node/Troubleshooting</a>

I've seen the troubleshooting page but my error isn't there. I've also tried to uninstall the package using sudo apt-get remove ros-groovy-laser-drivers and reinstalling it with sudo apt-get install ros-groovy-laser-drivers but that didn't help at all.

Would anyone know what happened? I'm just really puzzled because it worked perfectly before.