Error: could not load sample (no big enough memory block ava

Hi all,

I hope that someone might be able to give me some steerage here. Never had this problem before, but now on Cubase 7 the following error message appears Error: could not load sample (no big enough memory block available) when uploading an instrument from VST from East West\EWQLSO PRO XP.

My system details are as follows:
Processor: Intel i7-3770 @ 3.40GHxz
Installed Ram: 24 GB
Running Windows 7 Ultimate
64 bit Operating System

Any thoughts would be appreciated. My thoughts are that this is a settings issue in Cubase?

Cheers.