fistersn

I am a huge fan of The Sims, and I just bought the expansion pack to The sims, The sims on holiday. Bitn when i try to install the orginal Sims, i got this error message "Not a valid Win32 application". I hate that it had also happening with Operation Flashpoint. Both of this programs work under a other machin with also XP. What can I do? From Erlend