I'm seeing this too when installing sun-java5-bin and vmware-player In both cases clicking on details would reveal that it was waiting on user input - but I was unable to provide any input, so I had to kill adept and do dpkg --configure -a and then apt-get install <package>
to successfully install -- Apparent hang when package script wants user input https://launchpad.net/bugs/48625 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs