[This message was posted in qtcentre.org forum, but have not received any reply. Please excuse my cross-posting, but I'm getting desperate.]
I successfully installed and can run Qt4 Designer on my desktop machine, which is a 64-bit system running Ubuntu 12.04 LTS. Now I am trying to install Qt4 Designer on a laptop that is running 64-bit Ubuntu 14.04 LTS.
I click the Icon, and it will flash but will not open. Qt Creator works, but I'm trying to use Python. I've tried remove and install a couple times, but still nothing. I have downloaded PyQt4, Ubuntu-SDK, Qt4 (Designer, Linguist and Assistant).