Version:            (using KDE 4.2.0)
OS:                Linux
Installed from:    SuSE RPMs

As the description says, for most screens, a big message like the following will cause KMessageBox to use ellipsis, instead of displaying the entire message, which is *very* confusing.

    KMessageBox::information(this,
      "This_Is_A_Very_Big_Information_Message,_That_Will_Cause_KMessageBox" \
      "_To_Use_Elipsis_When_It_Should_Break_Up_The_Text_Anyway,_Confusing_" \
      "Users_And_Guaranteeing_A_High_Quality_Daily_WTF_Submission_:)");