During the middle-ages, the Islamic world reigned as one of, if not the most educated, technologically advanced and progressive society in the world. They were known for preserving ancient Greek science and philosophy, as well as discovering new ideas and making new inventions, leading to the renaissance in Europe.
The old Islamic ideas of education, acceptance of others (Mehmed II) and scientific advancement seem to have been lost to the islamic world, or at least left unmentionned as a driving force of modern Islamic states. Why has this occured? What was different in Islam that has led to not having a sort of renaissance to return to the "glory days" like Europeans had to return to the Roman/Greek times.
Is Islam still in a sort of dark ages, or am I completely off-base?
I think it's important to not view the Islamic world as a ideologically united, homogenous unit today as well as within the historic parameters you've described. I also think that due to their importance in Western culture, the advances made under the "Golden Age" of Islam are obviously given more attention than other aspects. Many Islamic countries are developed, educated and make advances scientifically. I think the more recent arrival of reactionary movements like Wahhabism and salafist movements certainly don't favor a progressive society. But they definitely do not encompass the values of the Islamic world, Which would include North Africa, the Middle East and much of Southeast Asia. I don't feel that Islamic values has seriously impeded the growth of Islamic states I terms of education or sciences. Many were previously colonies of western nations as well.