Anyway my original post about the fog issue was to discuss the point. I hate it when trolls like tommy boy come in posting silly pictures derailing the thread. There is no need for it. Whether that was aimed at me or not it was totally uncalled for.
Relax man i don't think it was aimed at you. I know Tommy well and hes a sound bloke. Its hard not to think like that sometimes with some of the FUD that gets posted here. Nonetheless its sorted now as Johan has confirmed its a bug and won't affect performance. Good for everyone all round, cept the naysayers.