NICOSIA - UN speical envoy Alexander Downer said on Wednesday that there were areas of convergence and still some areas of divergence in talks to solve the Cyprus problem, noting that it was important to maintain the momentum.Speaking after a meeting with President Christofias, Downer said the Cyprus problem was not easy to solve but he believed the leaders of the two communities had made progress.Downer said Wednesday's meeting was ''an opportunity for us to spend a bit of time together reviewing the progress in the talks''.''The important thing is that the process maintains its momentum and this series of meetings, I think, is very constructive,'' he added.''I think they have made progress. That is not to say that the problem of Cyprus is solved. There are still difficult challenges ahead. In the UN we want to encourage the leaders to continue with the negotiations, and to continue the negotiations in the constructive way that the talks are being held, whilst never wishing to detract from the enormous difficulties that are involved,'' he added.''They are making steady progress but all problems are not solved, obviously. So, there is still a way to go. And it is difficult, of course it is difficult. It is difficult for obvious reasons. There is a lot of history here. There is a lot of politics here. All of these things have to be addressed,'' he added.Asked about an intensification of the talks, Downer said ''the leaders are meeting twice this week'' and pointed out that ''it is only so often they can meet, there have to be preparations between the meetings, there has to be consultation between meetings, they have to think about different positions between meetings.''Downer said it was ''not realistic'' to expect the leaders to meet every day of the week, and pointed out that ''the important thing is that we keep up the momentum of the process and obviously there have been discussions about how that the programme will unfold in the months ahead.''Asked if a Camp David type scenario was feasible, Downer said he did not think ''foreign policy by analogy'' was a good idea because ''every case is different,'' adding that ''there is a bit of an inclination to keep the process here in Cyprus.''To questions regarding the venue of the talks, Downer said ''where we are having the talks is a very nice place to have them,'' adding that ''there is no plan to have talks outside of Cyprus.''(CNA)