Macintosh Display Card 824 GC: HyperCard 1.2.5 Compatibility


I just got a new Macintosh Display Card 8*24 GC for my Macintosh IIfx
(running System 6.0.5). I am running into a problem when trying to run
HyperCard 1.2.5. If the accelerator is disabled, everything is fine.
However, with the accelerator on, the outlined hand in HyperCard turns
black and the system does not react when I press buttons. Only browsing
is affected. When a button tool (or other tool) is selected, it seems to
work okay.

I need to use a custom HyperCard 1.2.5 stack off and on during the day.
Right now, I must restart the computer to disable the card to use
HyperCard.

An unadorned HyperCard 1.2.5 stack should work fine. Your stack may have
an XCMD or XFCN that is interfering with the altered QuickDraw command set
that the Macintosh Display Card 8*24 GC uses. As externals are processed
by HyperCard when a stack opens, any incompatibility (not bugs, though)
shows up.

We recommend that users of the Macintosh Display Card 8*24 GC upgrade to
HyperCard 2.0, mainly for the sake of performance. HyperCard 2.0 uses true
QuickDraw commands, which the Display Card 8*24 GC accelerates. (Earlier
versions of HyperCard bypassed QuickDraw entirely.) Older stacks should
work, but performance will not improve.


Published Date: Feb 18, 2012