why is it so difficult to stop capturing with wireshark 1.6.10 in fedora 16

[esolve esolve <esolvepolito () gmail com>]

HI,

    I installed wireshark on two computers, both with fedora 16 linux
system.
    I find it very hard to stop capturing once you have started the
capturing.  I have to click on the "stop the running live capture" button
for many times and then suddenly the clicking works.

    what is wrong with this? thanks!

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