Hello all, I am new in linux installations and management. I am running centos 5.2 on my machine and it won't let me install skype-2.0.0.72. Its giving this error:
warning: skype-2.0.0.72-centos.i586.rpm: Header V3 DSA signature: NOKEY, key ID d66b746e
error: Failed dependencies:
libQtCore.so.4 is needed by skype-2.0.0.72-centos.i586
libQtDBus.so.4 is needed by skype-2.0.0.72-centos.i586
libQtGui.so.4 is needed by skype-2.0.0.72-centos.i586
libQtNetwork.so.4 is needed by skype-2.0.0.72-centos.i586
qt4 >= 4.2 is needed by skype-2.0.0.72-centos.i586

The other problem is that I have installed thunderbird but I do not know how to launch it.

Help me, so desperate

Welcome to LQ.

...skype needs qt4 ...
Please use these commands :
1) su
2) yum -y install qt4
and qt4-4.2.1 will be installed, providing all the libQt***.so.4.
.....
.....
Launching 'thunderbird' : Make a 'launcher' by right clicking
on your Desktop, and use the full path as command, like
/usr/lib/thunderbird-x.xx/thunderbird
or /home/"username"/thunderbird-x.xx/thunderbird
.....

Hello, I need help on a download manager that can run well on centos and that enables me to schedule downloads for a later time. I also need help on my sound card it is not working.

Please show me how to install it because I am a newbie in linux

thank you

1) Downloads : 'wget' can be used. Make a script with
the command, and copy it to /etc/cron*
Please remember, that cron understands absolute path only.
( /usr/bin/wget http://www............ )

2) Soundcard : please show the output concerning audio,
from the command 'lspvi -vv'

Your sound card may be working, can be muted or the
volume set to 0. Change the settings, any volume
control or mixer can be used as a start.
( 'kmix' ...... or 'alsamixer' in a terminal window.)
.....