Hi AKT111
By default MMC checks your internet connection on startup, but this can be switched of on the Help & About screen - after MMC opened and checked the connection, click the "?" button in the top right-hand corner and uncheck both check-boxex in the center of the window, and click close.
MMC uses IE's internet configuration as per the readme.txt file. In other words, IE needs to be installed on your computer and you must be able to browse the internet using IE, e.g proxy configuration etc. must be set correctly to enable browsing. If IE is not installed or not configured to browse the internet, MMC's "internet connection checking" will timeout after a while, but sometimes it might crash and hang the application as well. If you have a terribly slow internet connection, the "internet connection checking" procedure might take quite a while and the controls in MMC only activates once the "internet connection checking" procedure has completed and therefor it might seem that it is hanging.