How to install software on acer aspire?

[HLA91]

Hey all

Today I bought a acer aspire one. Its great but I don't know how to install software on it, i found this site and many like it http://www.laptopmag.com/advice/how-to/aspire-one-apps.aspx?
but where it tells me to enter the command
xfce-setting-show
the terminal comes back withenv: xfce-mcs-manager: No such file or directory
I have googled the problem but no answers have appeared yet.
Does anyone know what I have to do to get this to work?

Many thanks

HLA91

[curt_fehr]

you need to reinstall xfce-mcs-plugins and xfce-mcs-manager (in that order). on mine reinstall didnt work so I used the following commands:

rpm -e --justdb --nodeps xfce-mcs-plugins
yum install xfce-mcs-plugins
rpm -e --justdb --nodeps xfce-mcs-manager
yum install xfce-mcs-manager

[sam0802]

or instead do this -
Alt + F2
then
xfce-setting-show
instead of in terminal