Just contacted JPM Service about this and they will supply me with a clear-down disk for £10 to fix this . They say it will help clear unnecessary temp files (Scandisk) held on the 3 partitions of the HDD plus it gives you the option of clearing the current games on the machine enabling you to re-install the compendium.
My only problem is that i don't have the original disk if i want to reinstall.
Can anyone help me or know how much it would cost for only the disk?