Books

I always say to myself that it is not worth to force books through. I do like 1/5th then I drop it if it did not catch me. Now I'm reading Pandora's star which is a great scifi book and sandwitched inbetween the great scfi chapters there is this uninteresting detective storyline with zero scifi, people talking to eachother about uninteresting stuff. I found myself forcing the book and questioned multiple times if I should continue. Then again a great chapter comes with interesting stuff I get hooked and within an eyeglance I'm back into this people talking each other for 30 pages. I will decide if I keep going or not, maybe I try to force it throgh the base storyline is keeping me hooked. Did you had any similar experience? What did you do?