My JOOMLA ADMIN MENU has disappeared after installing JA HIGHSLIDE module and plugin, just like some other users have experienced before (ref.: http://forum.joomla.org/viewtopic.php?f=431&t=422635).
In the last few weeks, I have encountered malfunctions in several JoomlArt extensions, but this one is now making unable to continue to work in my project, which is a big trouble for us!!! >:(
I hope you will guide me now to solve this major issue promptly.
PS.: Please reply on this forum. I cannot provide any backend information, because I am only Joomla administrator. The site is still under local development and I am not server administrator.