VISA issues when switching from Labview 5.0 to 8.5

Hello all
I am using a pressure transducer that I read using RS-232. In Labview 5.0 I used the Read Serial VI and it worked with no issues (I also tested it with the VISA from 5.0 with no problems either). Now I have upgraded to 8.5 and I seem unable to communicate with it anymore. The usual error I get when i try to read is a timeout error.
I ran the Troubleshooting Serial Line Monitor VI and it seems to work (RI blinks when the output lines are off, DCD RI and CTS blink when DTR is on, and RI DSR and CTS blink when RTS is pushed) The Basic Read and Write VI does not work however. Whenever I get bytes at port it always returns 0. I am using a USB-RS232 converter but this problem remains when I tried using an RS232 port on another computer running 8.2.
I recently added the VISA 4.3 drivers but this did not help.
Thanks for any ideas.
Thomas

This morning I tried with both the DOS prompt and Indigo terminal emulator. I also checked the setting on my manometer and the manual says that the settings should be:
Baud Rate: 9600
Parity: None
Auto Line Feed: Yes
Margin: 0
Decimal Point: "."
Send EOF: Yes
I then followed the instructions to set the port with MODE COM5:9600,N,8,1,P and it returned
transfer rate: 9600
parity: none
databits: 8
stop bits:1
timeout: on
XON/XOFF: OFF
CTS-handshaking: ON
DSR-handshaking: ON
DSR-sensitivity: OFF
DTR cycle: Handdhake
RTS cycle: Handshake
Then when I try to log the data with COPY COM5 log.txt it creates a txt file on my desktop with no information.
I checked the parameters on the old Labview 5.1 (not 5.0 as I said earlier) computer and they were
Error Replacement Character: 0
Flow Control XOFF Character: 0
Flow Control XON Characcter: 0
Serial Baud Rate: 9600
Serial Data Bits:8
Serial End Mode for Reads: Term Char
Serial End Mode for Writes: None
Serial Flow Control: None
Serial Parity: None
Serial Stop Bits: 1.0
Those were the only parameters available in the Serial Settings Node
With 8.5 I got all the same except
End Mode for Reads: None (when I changed it to TermChar, it didn't help)
XON: 17
XOFF: 19
There were many many more modem line settings but I didn't include them because they weren't in Labview 5.1

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