A weird thing just happened.  I started to play the game and clicked on the coaster ICON to add a coaster to my park and there were no coasters to add.  the coaster types were there but no coasters listed in the files.  0 nada.  I opened windows explorer and checked the files there and the coasters were all there where they were supposed to be.  but in the game nothing showed in the files.  I had 0 coasters listed in each type.  Any thoughts on the subject before I completely reload RCT3 Platinum. 

Retsarge

Well I had to reinstall RCT3 Platinum. everything was not working right and I kept losing coasters and other objects.