I have both VS2012 and VS2008 installed on my Win7 SP1 32 bit machine. As soon as I installed VS2012, VS2008 would crash anytime I started entering text in the source editor (VB or C#). If I key only one character in a new line and then wait for a few seconds, InteliSnese seems to get its wits about itself and does not crash VS2008. However, if a start a new line and forget to wait after the first character, then boom. This behavior does not happen when editing in VS2012 nor does it happen when editing in VS2008 when VS2012 is also running with an open project.