Ilex, the agency that is in charge of the installation, said a number of issues have arisen.

BBC: Derry public art piece Mute Meadow left in the dark

Ilex, the urban regeneration company, said it has technicians on site this week to resolve the problem.

BBC: Derry public art piece Mute Meadow left in the dark

Caoimhin Corrigan from ILEX, who are responsible for it, says the full benefit will soon be visible.

BBC: City of Culture art installation finally gets switch on

Following an evidence session with representatives of the Ilex Urban Regeneration Company from Londonderry, the committee turned to the Armed Forces and Veterans Bill.

BBC: OFMDFM Committee

ILEX, a consultancy, thinks that the French and Germans are wary of releasing stored gas on to the market so early in what could be a long, cold winter.

ECONOMIST: Winter worries mean gas prices have gone haywire

For Schering, which has been making strides into biotech and cancer treatment with a treatment for multiple sclerosis and Campath, a cancer drug licensed from Ilex Oncology (nasdaq: ILXO - news - people ), it is a strategic step forward.

FORBES: Schering AG Makes Biotech Strides