RCTgo

I'm going to be gone for a while, while I try to get this computer straight.  I have had no problems with RCT3 except no backgrounds but the plain grassy one.  Now I can't save any games.coasters, buildings or anything.  I keep getting a popup that says " unable to open, file may be set to read only, you may not have sufficient access rights or the hard drive is full.  I've checked all the folders and files and none are read only.  I have a 2 tb hard drive with over 1.5 tb free and I am the owner and administrator will all rights and priviliages.  I can't get Atari to answer my questions and Microsoft technician said it was beyond her training and she set up an appointment with a more advanced technician for this coming Monday.  If I can't get this resolved, I'm out.  Sorry. I love the game and you guys have been great.
If anyone has any suggestions I am free to any help at this point.

Retsarge