Following method resolved my problem:
http://ubuntuforums.org/showthread.php?t=1004376
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reading database slow since upgrading to karmic
https://bugs.launchpad.net/bugs/455969
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This bug is easily reproducible. Just do a fast triple click and volia!
File roller opens your folder that you triple clicked. And selects
hovered item of subdirectory. For some reason also it's stuck in DND
mode! I think this bug is only affects fast clicking users. Very
annoying and should be in
Public bug reported:
Binary package hint: gcalctool
Normally xor operation with zero is possible. For example 0x00 ^ 0x3B =
0x3B. But gcalctool reports an invalid bitwise operation error.
ProblemType: Bug
Architecture: amd64
Date: Wed Jan 20 12:04:04 2010
DistroRelease: Ubuntu 9.10
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/38126517/Dependencies.txt
** Attachment added: ProcMaps.txt
http://launchpadlibrarian.net/38126518/ProcMaps.txt
** Attachment added: ProcStatus.txt
http://launchpadlibrarian.net/38126519/ProcStatus.txt
** Attachment