diff --git a/Start_Windows/game.c b/Start_Windows/game.c
index 847ff47..1688bff 100644
--- a/Start_Windows/game.c
+++ b/Start_Windows/game.c
@@ -60,7 +60,7 @@ int checkIfPositionIsFree(char salad[MAX_SEARCH_FIELD_LEN][MAX_SEARCH_FIELD_LEN]
       // by scanning each column in the given row
       for (i = position.startingCell; (i < serchFieldLen) && !(letterFound); i++)
       {
-         if ((salad[position.rowOrColumn][i] >= 'A') && (salad[position.rowOrColumn][i] <= 'z'))
+         if (((salad[position.rowOrColumn][i] >= 'A') && (salad[position.rowOrColumn][i] <= 'Z')) || ((salad[position.rowOrColumn][i] >= 'a') && (salad[position.rowOrColumn][i] <= 'z')))
          {
             letterFound = 1;
          }
@@ -72,7 +72,7 @@ int checkIfPositionIsFree(char salad[MAX_SEARCH_FIELD_LEN][MAX_SEARCH_FIELD_LEN]
       // by scanning each row in the given column
       for (i = position.startingCell; (i < serchFieldLen) && !(letterFound); i++)
       {
-         if ((salad[i][position.rowOrColumn] >= 'A') && (salad[i][position.rowOrColumn] <= 'z'))
+         if (((salad[i][position.rowOrColumn] >= 'A') && (salad[i][position.rowOrColumn] <= 'z')) || ((salad[i][position.rowOrColumn] >= 'a') && (salad[i][position.rowOrColumn] <= 'z')))
          {
             letterFound = 1;
          }
@@ -129,7 +129,7 @@ void placeRandomLetters(char salad[MAX_SEARCH_FIELD_LEN][MAX_SEARCH_FIELD_LEN],
    {
       for (j = 0; i < searchFieldLen; j++)
       {
-         if ((salad[i][j] < 'A') && (salad[i][j] > 'z'))
+         if ((salad[i][j] < 'A') || (salad[i][j] > 'z') || ((salad[i][j] < 'a') && (salad[i][j] > 'Z')))
          {
             salad[i][j] = rand()%('Z' - 'A' + 1) + 'A';
          }
diff --git a/Start_Windows/wordsalad_myversion.exe b/Start_Windows/wordsalad_myversion.exe
index c5f9799..277a4ea 100644
Binary files a/Start_Windows/wordsalad_myversion.exe and b/Start_Windows/wordsalad_myversion.exe differ