Blackberry Application Installation

My heart almost stopped and I had a deep feeling of anxiety during my first installation of a software application (Tube 2) on to my Blackberry 8820. Towards the end of the installation, it was going though an initialisation stage with my Blackberry appearing to restart, e.g the turning hour-glass. It seemed to hang for ages, during which my thoughts returned to the last crash during a flash upgrade! I quickly turned off my AVG Anti-Virus software in case that was causing a problem. I am releaved to say the install completed perfectly. Now, would it have been so successful if I hadn't turned off AVG?