I'll try with this patch.
I reinstalled the game and now after installing the FCPDFR mod the installer shows me:
Installation component 'LCPDFRModels' error'd!
w System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
w System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath)
w System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options)
w System.IO.StreamWriter.CreateFile(String path, Boolean append)
w System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding, Int32 bufferSize)
w System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding)
w System.IO.File.InternalWriteAllText(String path, String contents, Encoding encoding)
w System.IO.File.WriteAllText(String path, String contents)
w G17MediaSetupEngine.Installation_Components.tazershit.beginComponent()
w G17MediaSetupEngine.UI.Interface.wizardControl1_SelectedPageChanged(Object sender, EventArgs e)
w G17MediaSetupEngine.UI.Interface.wizardControl1_SelectedPageChanged(Object sender, EventArgs e) Shit. I installed the newest patch and than the LCPDFR mod, and this message dissapeared, but now, when I run the GTA IV it's not starting loading. It show me the message: "Loading failed. Check your hard Drive" How to fix it?!