OK, I think these shell commands show my problem quite nicely:
[root@localhost internet_tools]# rpm -e dcgui-qt-0.2.20-1.i386.rpm
error: package dcgui-qt-0.2.20-1.i386.rpm is not installed
[root@localhost internet_tools]# rpm -i dcgui-qt-0.2.20-1.i386.rpm
package dcgui-qt-0.2.20-1 is already installed
I want to uninstall this package but as you can see rpm seems to be a bit confused. Can anyone tell me what I'm doing wrong, perhaps some arguement I need to pass?