hey blink,
i have a system 1/2 that size and still run all 3 versions of RCT. My suggestion is to save any parks that you have made to disk and delete it off your system then re-install the original RCT, followed by the CORKSCREW FOLLIES cd, then try the LOOPY LANDSCAPES version. That's the way i did it and i've never had any problems with it except killing too many people on coasters. Good thing i work in insurance instead of coaster design =)
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Steel aint better, wood forever!!
SRM VII: May 11.....be there, or be ... well, not there.