Thank you for response. Serious indeed.

By 'shared'; do you mean is the site on shared server space (as opposed to being on a dedicated server?) (Sorry for my possible ignorance.) If that is what you mean I am a reseller for the hosting company but not on dedicated server. Site url is gingergraphicdesign.com if that helps.
To delete roknavmenu I would have to do it via ftp as it can't be done via Joomla back end. Wil try reinstalling rocketlauncher.