If your RCT3 game stops working and won't load past the black screen at startup with the white cursor. Rename the RCT3 folder in your My Documents folder to another name. Restart the game. If the game starts than you have gotten a corrupted Park file, track file, fireworks file, structure file etc.
The screen will crash to the send microsoft report error. Though this does not apply to most situations you may encounter it does apply to many. The screen to send the report might look something like the one right below.
Return To The RCT3HQ