I have previously asked about serial communicaton with Ucontroller using VB6.

Now I have developed a simple serial communication application in which data from microcontroller is continuously transferred at the baud rate of 110.

The program is:
org 0
mov tmod,#20h
mov th1,#152 ;generates standard baud rate 110 (0 % error)
mov tl1,#152 ;with crystal oscillator 4.43MHz
setb tcon.6
mov scon,#50h ;8 bits mode
loop:
mov a,#40
mov sbuf,a
halt:jnb ti,halt
clr ti
ajmp loop
end

Similarly in the VB I have written a program that displays the data which is received from RS232 port. The program is:

Dim data() as Byte
MSComm1.InputMode=comInputMode Text
MSComm1.CommPort=1
MSComm1.Settings="110,N,8,1"
MSComm1.PortOpen=True
MSComm1.InBufferCount=0
DO
DO Events
If MSComm1.InBufferCount Then
data=MSComm1.Input
Text1.Text=data
Exit DO
End If
Loop

MSComm1.PortOpen=False


PROBLEM:
The Textbox shows random data like B , |, %, (, %%. My questions are:

a)What is the wrong with the code or frame synchronization ?

b)What should be done if I want to display 40 (same data as sent by Ucontroller) in the TextBox ?

c)Why the TextBox displays nothing when MSComm1.InputMode=comInputMode Binary ?

d)Can it be possible for a Ucontoller to recieve data while doing other job, (e.g. controlling motor speed and recieving data at the same time) ?

e)Are there altogether 10 bits (including Start and Stop bit) in a frame while using 8 bits mode ?

f)Full duplex is not possible as there is only one SBUF.I guess.

Please help me in any or all of the problems.