i got a new unibody macbook pro last week and instal vista in bootcamp to run some games after the installation it only recognized 3 gigs out of my 4 gigs of memory? any ideas?

If it's 32-bit Vista you will only see 3GB you need to load the Vista 64-bit version to see all of it!

SticMAC

so 32 bit vista only uses 3 or only shows 3 but uses 4?

Shows AND uses 3GB.
Addressing space in 32-bit is 4GB, out of which some 100s of MBs are mapped in PCI I/O space.

Yup it is limited to 32 bit address space... this gives you only about 3gb in your machine but only 2gb on the mac pro.
64 bit is the way to go.

Slightly different situation here - Unibody MBP, 4GB Memory, OSX 10.6, Boot Camp 3.0, Vista Home Premium. Windows is only showing 1GB out of the 4 (or even the 3GB max in 32-bit).

Any ideas on how to see and use the remaining 2GB? I could really use it...