RCTgo

hello i need help with RCT3, iv'e been playing this game for a long time and i recently (about a month ago) upgraded my pc and i own the game through steam

specs
"Windows 7 " "8gb ram" "CPU intelcore i5-3570k @3.40GHz" " GPU AMD Radeon HD 6900 series"
"asus p8z77-v LX motherboard "

i have tried running in admin and using compatibility mode
please help i really wanna play this game!

any help i will appreciate thank you