Thanks for the concern, but I'm pretty sure everything is working. Here's why...
It has always been set as G:\, but when I started using the Windows 7 recovery options it decided to change the letter to D:\ (even though everything still pointed towards G:\). When I finally got Windows to boot, I tried to login to my user profile, but instead it logged me into a temporary profile because it, along with all programs, was pointing towards G:\ which "didn't exist".
So once I managed to change it from D:\ back to G:\ (not sure how exactly, as you can't do it through Linux and Windows was giving me an error, but got there somehow) I was able to login to my user profile and all worked fine.