Mac visa problem

I developed a spectrometer application for a customer using VISA RAW communication on a Mac.
The software had been running fine until he decided to install the latest OS uzpdate (10.5.7). Now the software doesn't work. The problem seems to lie with NI-VISA not being started on boot.
Has anyone got any idea where I should look to try to solve this problem?
The software runs fine on my mac mini with all latest updates installed. The customer was just here and I was able to verify that indeed the software was not running. The Visa configurator wouldn't start, VISA server wouldn't start and even though the Spectrometer was visible int he System profiler (i.e. the hardware was recognised by the system), my Software couldn't access it.
Can anyone help?
Shane.
Say hello to my little friend.
RFC 2323 FHE-Compliant

Lynn,
thanks for taking the time to help me out with my Mac adventures (again).
The programs VI Server and VI Configurator are in themselves not the problem. The inability to start them is simply an indicator to where the problem might lie.
The problem is that the entire VISA service seems to be unavable. I have a piece of software (a previous version of which you are familiar with) which ran fine before the upgrade and now doesn't. I tried a re-install of VISA but itjust doesn't seem to work. I'm not using anyhting beyond VISA control in and out and an initial VISA search in the software.
I'll check out the start items tomorrow in the office (it's evening here already).
Thanks
Shane.
Say hello to my little friend.
RFC 2323 FHE-Compliant

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Message was edited by:
ahbeng78

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init failed to load ArrayList as error message
said:
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Koen wrote:
> Hello,
>
> I have the following rather strange problem with serial communication
> on a Macintosh:
>
> 1. I wrote a program using the simple serial VIs provided in LabVIEW
> and write and receive amounts of data up to about 25000 bytes. The
> serial buffers are bo
th set to 32000 bytes. If I wait long enough
> everything works perfect (this was just a test VI for reference)
> 2. I wrote the same program using VISA calls, I initialize the port
> exactly the same (or so I think), set and flush both read and write
> buffers. Then I send the data, which seems to work, except that I have
> to increase the general time out of the VISA session (which is already
> odd as it should just be sent to the buffer). However the read
> operation allways fails. It seems that no matter how long I wait after
> the write operation the buffer only contains 63 bytes, where is the
> rest going (from the program described above and the reaction of the
> instrument I know that everything is sent!)? What I read is the echo
> of what is sent plus one extra byte, it seems that those 63 bytes are
> the first 63 that are sent, the buffer is thus not overwritten as I
> would expect if the buffersize was to small.
>
> If anyone could shed some light on this problem I would be
very
> greatfull.
>
> Best regards
> Koen

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