What are the problems? I have install it on two computers without any fuss. One was a iMac 27" with Win 7 Ult in boot camp and the other on a HP system.
I know people have had problems (this happens sometime whenever a sp is released), but it would help if they indicated what the problem was and then maybe we could help them figure how to fix the problem.
Also if they would take the time to include their specs in the CP section when becoming a member it would be of great help. By filling in their system specs it allows other members to view their system, thus giving them some idea what to look for, or where to start with attacking the problem.