Doesn't make it to the cin getline function again, why? Labeled & Er. Chked

Ok, so I've gone through Error checking on this, and the program doesn't seem to make it back to the input after a multi word answer has been put in, I labeled the part where it all goes wrong. You can download the source or I'll point out the 3 or 4 lines right here:

Code:

mainlp=1;
	while(mainlp!=0)
	{
		line=0;
		input="";
		responce="";
		getch();
		system("cls");
		cout << ">> ";
		getline(cin,input);        //Never Gets To This Input After Multi Word Answers, Why?
		cout << input;
		input=lower(input);
		cout << endl << input;
		cortana::find_line();
		cout << responce << endl << endl;
	}

I know that part's a little messy, but that's basically my main interface so It probably will remain that way. Here's the zip.

Downloads: 5
Responces: 0

Come on, responces can still catch up.

Haha, I love the way you bump $$$$. I'll have a look after the
movie.

downloads have scored 2 more points in the second quarter, will the downloads make up the necessary scores? Let's find out, now on the second half.

HEEY the cin.ignore thing worked.

put this in after every input

cin.clear();
cin.ignore(80, '\n');