AI read buffer won't work

[Nagara]

I.m working with LV 6.1 in Win98, all example and my program work perfectly, but if I install the LV 6.1 in other computer (win2000),it always have this problem :
- the timeout light is turn on
- The Continuous Acquisition & Chart (or Graph) (Buffered) examples are never work well
- Continuous Acq&Chart Easy Immediate Acq and Hardware-Timed work well
I use the DAQPad-1200 for the device.
What is the problem, are the NIDAQ 6.9.3 not compatible with win2000 or winXP (I have try too for winXP)?
Did i miss something ?
is the ai read buffer.vi the problem, why ?
it seem that all buffered programs wont work, why ?
Please, help me, very urgent. I will thank you for your answer.

[shoneill]

I would say it`s an IRQ or DMA problem.

Check out the installation of the DAQ device to make sure the DMA and IRQs are correctly assigned. It may be possibble to reserve an IRQ for the card in the BIOS.

Shane.