Update Version 3.19f[b].019

Does anybody have the same problem that I am having with the update to Version 3.19f[b].019 Iconpackager,I wanted to change to another package a message came on my screen saying " PLEASE WAIT " and I waited for 15 minutes and nothing happened, I had to use the Ctrl+Alt+delete keys to end the program and then the Iconpackage changed the Icons, the version befor I updated worked just fine is there a way to go back to the earlier version without uninstalling the hole program.