zhengjun, I have just tested the link for the solution manual (the ifile link) and it is working. You should try it in case if you have not done so because it is an ifile link. Meanwhile I will try to send you the manual (37 MB) via email (no assurance that it will get through) but it will be faster and more reliable if you can download using the ifile connection. Wish you all the best for your exams next week.