I have a factory refurbished GL2 with a 90 day warranty the I got a couple weeks ago. It seemed to be working fine at first but then I noticed some problems with the manual exposure controls.

Whenever I changed it to the manual settings and try to change any of the iris options (F-stop, gain ect.) the setting will just go as high as it goes and is stuck as soon as I touch the exposure wheel. For example the f-stop will go to the maximum setting and there's no way to adjust it.

So I am stuck shooting in one of the auto-setting. Needless to say you don't buy a camera like this to shoot on auto.

At first I was able to control the manual controls when there was a tape inside the camera, now it doesn't matter.

Luckily it's under warranty, but I really don't want to have to send it in. Anyone have any idea what could be going on?
Thank you