under XP The sreen and PC freezes for a long time and its is not even possbile to take the mouse to open a program After a while, the PC runs normal and SL and the rest is back to normal again The PC is DUAL Intel and 2 GB RAM The OSX Platforms runs under 2.14 GHZ Intel and the latest PPc von Mac with 2 GB RAm each both MACOS Systems have serious problems to render the screen from SL propper. It means, U see a while absolut nothing and it comes very slow to normal view. It seems to me the Software is only good under XP. Also Linux makes some problems the same kind. And both System like Linux and MacOS are Unix Systems. For older PC's and Laptops are SL not playable. Also serious problems with AMD Prozessors and 1 GB RAM even when the requierment more as good on some SIMS are permanent lags and this very strong, U cant even move, when U was sitting and U want to walk again. Some days it works but most days, U can forget it. sometimes are for example even not homeowers more able to get in their own houses, when the house is locked. and have to delite the Activar and House, so the have to purchase a new one. Also the credit payment, I was not even able to purchase a home. It was not possible for me to pay the amount in ones. And my question is why ?? Also nice would be paypal payment. And the info about the membership is not really clear.