Raaf, I am not using cookies here and am having no problems...
At BearShare forums I have no more than about 12 mins to do a post or I get the 'You are not logged in...' stuff...

Only times I ever get it here is when I am doing something changing 'Profile' stuff... and that's with more windoze open than makes any sense !!!

Is it still doing it to you ?

Agree with backmann re: letting your browser do the cookies...