True, but 64-bit can take advantage of as much RAM as we can throw at the problem and as far as I'm aware 32-bit cannot.

64-bit would either

a) solve the issue

b)...

Thanks for both replies and yes those are exactly the answers I'm looking for because I think they should have gone with 64-bit in the first place. Luckily they're not...

wow, this must be even more complicated than I thought as there have been 0 replies in the two weeks since I posted!!