Raising funds is a major milestone in the history of every startup, and you should congratulate yourself for doing this successfully - after all, only a very small percentage of founders manage to get to this stage. After you've patted yourself on your back, accepted the congratulations which pour in, and issued the press releases to let the world know that you are on your path to building a world-class company, you then need to then get down to brass tacks. The problem is that after founders get their first cheque, they're so focused on fine-tuning their product and marketing it, that they forget that they also need to take care of their investors.