Problems with starting the game

[3av]

I have installed Cliffs of Dover to my computer (Win XP), and when I start the game I can go to the the point where I can select for example "Quick mission", "Single mission", "Campaign", etc. When I choose some of them I get the photo of for example JU 88 and at the bottom the line of numbers 1, 5, 10, 15, 20, and so on to the 100. It looks like the game starts loading from no. 1 to between 5 and 10, but doesn't go forward. All the time it gets between 5 and 10 and then comes back to 1 and starts same again...where is the problem, please help me!