IDV Mac OS-X problems

Hi all-

I want to provide an update on the issue of installing
the IDV on Mac OS-X.  The details are:

- systems running Mac OS-X 10.4.4 or higher which have
a GeFORCE card experience flickering of the display and/or
a continued flickering/screen burn in even after the IDV
is exited.

We recommend that if you are running the configuration above,
that you not install the IDV on that system because in could
cause permanent damage to your screen (and it makes the IDV
unusable).

We have been in contact with Apple in an effort to solve this.
Note that this is specific to Mac OS-X 10.4.4 or higher and
only on systems that have the GeFORCE card in them.   Older
versions of Mac OS-X and systems with other graphics cards
do not exhibit this behavior.  This is also not a problem with
GeFORCE cards on other operating systems.

The problem seems to stem from the fact that the GeFORCE card
lists itself as being stereo enabled and the IDV sets itself
up for that mode.  We have implemented a workaround for this
in the next release (1.3b2 due out tomorrow) which will turn
off stereo rendering by default. Any IDV users that use it
in stereo (e.g., for GeoWall displays) will have to modify
the runIDV script to enable stereo.  That applies to all
operating systems at this point, but should affect only a
small number of IDV users.  In the future, we will try to
implement a solution that only applies to the problem system
(Mac OS-X).

If you have been waiting for a solution to this problem, please
download the new version when it is available and let us know
if this indeed does solve the problem.

Don Murray
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