My girlfriend bought a new i5 MBP from the apple store a two days ago. When in the shop they put lion on there for her for free (SL was already installed). When we got home every time we opened the app store we would get the little pinwheel for about 20 seconds and when opening apps we would get the pinwheel about 70% of the time. Is this normal? Is there anything we can do to stop it as it is getting really annoying.