Parallel Port Loopback Error

[Air]

I am at a loss. I have tested parallel ports on 3 different computers on my network and all computer show the same error.

BurnIn Parallel Corruption. Data received didn't match data sent
BurnIn Parallel Corruption. Data received didn't match data sent
BurnIn Parallel Corruption. Data received didn't match data sent

Can anyone tell me why I am getting this error message when testing my Parallel port?

I am testing BurnIn Test v4.0

My system specs are:

Windows XP
2.2 GHz Pentium
1GB RAM
ATI Radeon Video Card

Thanks in advance to any one who can help me resolve this error.

[passmark]

The parallel port requires the use of a parallel port loop back plug (http://www.passmark.com/products/loopback.htm).

If you are using a loop back plug and it is not one of ours then check the loop back plug pinouts (http://www.passmark.com/support/loopback.htm).

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David