PHP Warning: Cookie names can not contain any of the...

[siggij]

Hi,
First time user of cacti, followed the installation guide to the letter. Cant login to the Cacti console however because of this error: PHP Warning: Cookie names can not contain any of the folllowing '=,; \\t\\r\\n\\013\\014' Cacti.log says admin is authenticated but I always get a new prompt when I try to sign in. All help would be much appreciated. Using the epel version of cacti on Centos 5.6 with php 5.1.6 and mysql 5.0.x

Best regards,
Siggi

P.s. would love to get some hints on mysql graphing, if someone could point me in the right direction.