White Post Box

[LordVader]

Hi all

I hope this is in the right section etc, but i really need help with the following.

When in rich text editor mode my post box looks fine, please see below



But when i click the button to ( Switch Editor Mode ) it goes completely white & you can't see the text, please see below.



Could somebody please tell me how to fix this or where i need to look to edit the code for the editor BB Code display, as its driving me nuts & it makes it very difficult to edit posts etc

Thanks

Will.