Suddenly with unknown reason, the google scholar web searching fetch no result but a gray board there, as shown in the attachment. The "ok", "cancel", "select all" "diselect" buttons are available to click, though. I tried to reinstall jabref 2.10b2 and 2.9. Neither fix this problem. This error already cause a large inconvenience for me to add new citations. Please help me to resolve it. Thank you!