I've now started a project using the Blank Template and just unchecked the SteamVR and OpenVRExpansionPlugin Plugins and everything is now working great.
Thanks for the help though, very much appreciated.

#define STEAMVR_SUPPORTED_PLATFORMS (PLATFORM_MAC || (PLATFORM_LINUX && PLATFORM_CPU_X86_FAMILY && PLATFORM_64BITS) || (PLATFORM_WINDOWS && WINVER > 0x0502))
#define STEAMVR_SUPPORTED_PLATFORMS 0
Leave a comment: