GTA-VC is quite an old game, it might be worth trying to uninstall and re-install the application; and once re-installed installing any avalible patches A link to an avalible patch is below http://www.thegtaplace.com/download...
The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Purch hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.