I think I have it sorted, seems like these new colour cameras take a lot of power so I have ordered an upgrade to my power supply I will let you know how I get on.
The cameras are Colorvu Turbo DS-2CE12HFT-F28 5MP with latest firmware.
Thanks for reply
Hi I have just installed a new Colorvu system with 3 cameras, on two of them when I go into the ptz settings I am unable to select 5MP the only options are PAL or NTSC on the other camera I can select 5MP no problem, the other settings for all three cameras are the same.
Any ideas thanks.