Serial, sending entire byte array

[system]

Hello, I have problem with sending data through serial with Arduino.
When I try send data with WinAplication, I have following Sniffer LOG(Free Serial Monitor), see attachment. (there string is sent as entire data)
When I sending using Arduino, it seems that it sends like each byte apart, see attachment.

PS:

1. Serial Ports are virtual, I'm using Virtual Serial Ports Driver for XP
2. With combination WinApp(server) + WinApp(Clinet) - works fine.
3. I'm using Proteus to emulate Arduino.

void setup() {                
  Serial.begin(9600);
}

void loop() {
  //20051010BB
  byte cmd[]={0x20,0x05,0x10,0x10,0xBB};
  Serial.write(cmd,sizeof(cmd));

  delay(3000) ;
}

[CrossRoads]

Try this, should loop thru all of the array cmd[]

  //20051010BB
  byte cmd[]={0x20,0x05,0x10,0x10,0xBB};
  byte x;

void setup() {                
  Serial.begin(9600);
}

void loop() {
for (x =0; x<sizeof(cmd); x=x+1){
  Serial.write(cmd[x]);
}
  delay(3000) ;  // why need this?
}

[system]

Unfortunately, this didn't work.....

I attached new screens...
So How you see Win app sends entire buffer, those 5 bytes cmd[] = {0x20, 0x05, 0x00, 0x10, 0xCB};

On other side, arduino also send those bytes, but separately.
Marked with red screens.
http://siggiorn.com/arduino-serial-manager/ didn't solved problem.

[CrossRoads]

Got me then - there's no line feed/carriage return being sent, don't know why it's repeating.

Also,
where is the 2nd occurrence of 0x10 that have in the array?
{0x20,0x05,0x10,0x10,0xBB}

[system]

Sorry, my bad - {0x20,0x05,0x00,0x10,0xCB} - as in Screenshot.
Mean that no data lost or corrupt.

So the problem that I can't send entire buffer(5 byte)as one command.

Already googling 2-3 days.... if it is needed to use a low level libraries, mean AVR libraries to solve - let me know. Just point me, please.

[CrossRoads]

So try straight "inline" code vs a loop:

void loop() {
  Serial.write(cmd[0]);
  Serial.write(cmd[1]);
  Serial.write(cmd[2]);
  Serial.write(cmd[3]);
  Serial.write(cmd[4]);
  delay(3000) ;  // why need this?
}

[system]

same stuff

code:

byte cmd[5]={0x20,0x05,0x00,0x10,0xCB};
void setup() {               
  Serial.begin(9600);
}

void loop() {

  Serial.write(cmd[0]);
  Serial.write(cmd[1]);
  Serial.write(cmd[2]);
  Serial.write(cmd[3]);
  Serial.write(cmd[4]);

  
  delay(200);
  
}