Error message telling me to check system reqs?

Hey all, I just purchased Acrobat X Pro for teachers and students but am having trouble.  On installation it is telling me to check system requirements.... I have Windows Vista Home Premium, with 2.8ghz processor and 3.0G RAM with lots of space on hard drive..What do I need to do?  It tells me to run setup again.  I have done that 3 times...help!