[pmwiki-users] Attach-Upload not working under Gemini Skin

[Sivakatirswami]

I'm just now after many moons looking into the Attach-upload function.

I'm running PM wiki 2.0 beta 29, skin: GeminiTwo version 7

when i click "Attach" in Gemini's footer, my side bar on the left  
simply disappears... there dialog to browser for the upload file and  
name it, does not appear...

It works fine for me in PMwiki...

Do I need to install something to make uploads work?

Thanks
Sivakatirswami