Solve several problems after LUbuntu 12.04 is installed

Solve several problems that occur after LUbuntu 12.04 is installed. After LUbuntu 12.04 is installed, several problems are found, among which iBus and Synaptic are the most serious. IBus cannot be started or used (it seems to be drool). Isn't it a time to go back to the Dos era for an operating system without an input method? Haha! Therefore, Google found two solutions: 1. After installing the complete language environment, sudo cp/usr/share/applications/ibus. desktop/etc/xdg/autostart solves the problem of starting iBus with the system. Www.2cto.com 2. Delete iBus, sudo apt-get install fcitx, enable language support after installation, select the keyboard input method fcitx, and click "apply to the entire system ", everything is done. In fact, there is another problem in LUbuntu since 11.10 that there is no search bar in the synaptic (Suntory Software Package) toolbar. This is a big problem for UI control. How can we solve this problem ??? In fact, it is quite simple. After Google, find a solution: sudo apt-get install apt-xapian-index by BillySong