Search for all dumps and delete them; if so much dumps has accumulated, you must have some cycling error. To deal with it I suggest you send us your logs.
To send logs, in the Windows Start menu -> Run , type %USERPOFILE% and press Enter. You'll be taken to a folder with your user profile data, in it go to Local Settimgs->Application Data->TS Support->MultiCharts. There will be a Logs folder, zip it and send to us please.
If it's over 10 megabytes, contact me at
akramarenko@tssupport.com, I'll help you with access to FTP or use remote desktop copying.