How to change colour options in Lotus 1-2-3 servers?

Hello!
I am using Lotus 1-2-3 installed on a server. I used to be able to change the colours but now, when I click the colour box, it appears empty, with no colour option.
All the computers in my network run on Windows XP SP2 and the server works with Windows 2000.
How to get the colour box back in function?
