Sorry, newbie question about generating a random string

I'm trying to write a simple program to generate a random string. I
have what seems to work, although I'm guessing there are better ways
to do it. But my overall goal is to generate a random character, then
add a second random character to it, then another, etc. until the
string grows to a max of 10 characters. I'm testing a word wheel on a
website but have to use 'C' and it is not my forte'. Anyway, here's
what I have:

int myRand,myLoop;
char myChar[1];
char myLoc[11];

srand((unsigned int)time(0)); //Seed number for rand()

for (myLoop =3D 0; myLoop < 10; myLoop++) {
        myRand =3D rand() % 25 + 65;
        myChar[0] =3D (char)myRand;
	myLoc[myLoop] =3D  myChar[0] ;
	printf("%s", myLoc);
}



I would expect the output to look something like:
V
VD
VDY
VDYW
VDYWQ
VDYWQA
VDYWQAE
VDYWQAEM
VDYWQAEMQ
VDYWQAEMQJ

But instead it looks more like:
V
VD
VDY
VDYW=A6=0EB
VDYWQ=0EB
VDYWQAB
VDYWQAE
VDYWQAEM=FC=0EB
VDYWQAEMQ=0EB
VDYWQAEMQJB
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