printer/irq problems

i have been advised that my printer problem maybe from an IRQ conflict, however- my computer will not let me assign new IRQ's  i can not find an open # available-
i show a conflict in my primary IDE controller-  i tried to change the master controller IRQ i get a message can not change these settings- i try to change the primary i get an error message- can not change without the parent controller changed- so i  can not change anything- my printer error is can not establish bidirectional communication- i tried a new cable- no good- i can not overide the bidirectional print.. HELP-  also my computer has not been shutting down properly-  HELP with detailed instructions
ptmAsked:
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rmarottaCommented:
ptm,
The first thing I would do is resolve the conflict with your IDE controllers.
Check System properties for a Dos compatibility mode problem.
(Right-click My Computer, select properties, then Performance tab)
This can become very involved, so I advise you to read and understand the following before attempting any changes.

http://support.microsoft.com/support/kb/articles/Q130/1/79.asp

Next, I think you must have an Enhanced (ECP) port enabled for bi-directional printing.  This will require an IRQ and DMA.

Let me know how it goes.
Regards,
Ralph

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jrhelgesonCommented:
What IRQ is it trying to assign to your LPT Port?

Is it trying to assign the printer pprt to IRQ 15?

What kind of Motherboard do you have? ( I Just dealt with a similar problem on a Biostar Pentium MoBoard).

Let me know.
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ROCSCommented:
ptm - what sort of computer?  486?  Pentium?
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rmarottaCommented:
ptm,
We need some feedback from you.
Ralph

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prantiCommented:
Did you try to change the settings for your parallel port in your system-bios?
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rmarottaCommented:
ptm,
We can't be of much help if you do not respond to the comments.
If the proposed answer does not solve the problem (and I don't see it as an answer at all) simply re-open the question to other experts.
Ralph

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