Ahhhh, no! This ram thing has been causing me problems everywhere I turn.
The ram was free. I couldnt downgrade to 4 even if I wanted. If you don't believe me go and configure the pc's with 8gigs of ram as free/default.
Mesh can only ship with 32bit Vista due to licensing and probably 90% of customers not bothering with 64bit when/if it was available.
IF I had the option I'd have gone for 64bit, but I didn't; I'm fine with 32bit until I feel the need or desire to upgrade to 64bit. Hope that all makes sense...