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UI Hangs

• To: mathgroup at smc.vnet.net
• Subject: [mg114480] UI Hangs
• From: brien colwell <xcolwell at gmail.com>
• Date: Sun, 5 Dec 2010 21:53:35 -0500 (EST)

Hi all,

I seem to hang my Mathematica 7 UI frequently with very large symbolic
output. For example, using some large matrix, I may mistakenly use a
non-integer index (oops). The nonsensical value propagates as a
symbol, until it comes flying out into the UI as some very complex
thing, where a half-rendered "Notebook Progress -- Formatting Notebook
contents" messages hangs for a very long time. Are there settings in
the UI to prevent this kind of thing, or a way to cleanly cancel long
UI jobs? With long jobs in the kernel, if Kernel->Abort Evaluation
doesn't respond, I can simply kill the kernel process, but this kind
of recovery doesn't seem possible in the UI (if just for fear of
corrupting my notebook).

TIA