Thanks Henry, that worked for me.

I am guessing from the style of the lab that you were the author. It really is 
very good. I was thinking of doing a video series of screencasts following 
along the lab and pointing out the tools that are shown and why they are 
important to learn as a newcomer to the language. Do you have any 
concerns/suggestions about how you would like to see this done?

I am cross posting to chat so that you can follow up the thread there, since 
this is not really programming.

Cheers, bob

> On Jan 23, 2021, at 08:04, Henry Rich <[email protected]> wrote:
> 
> I have pushed a change that might be a fix. Update your Dissect addon.
> 
> The mouse-move routine returned a value that was being displayed. I changed 
> it to return i. 0 0.  That made the 0s go away for me. I think the display is 
> probably only when debug is on, and was introduced toward the end of 9.02 
> development.  Normally the results of event handlers are not displayed, but 
> for debug they are passed into the suspension handler which then displays 
> them.
> 
> Henry Rich
> 
> On 1/23/2021 12:09 AM, 'robert therriault' via Programming wrote:
>> I was going through the J by point and click lab and noticed that there is a 
>> problem with the dissect window in j902 and j903. Whenever I move the mouse 
>> over the dissect window a sequence of 0's races down the page of my term 
>> window. I don't see this behaviour j901 or earlier.
>> 
>> Is this happening for anyone else?
>> 
>> I had been hoping to run a series of videos based on this lab to provide an 
>> easy entry to J from the masses, but would not want to do that if it not 
>> reliable across versions.
>> 
>> Was this lab yours Henry? It is a very good introduction.
>> 
>> Cheers, bob
>> 
>> JVERSION(s)
>> 
>>     JVERSION
>> Engine: j903/j64avx2/darwin
>> Beta-a: commercial/2020-12-17T10:25:30
>> Library: 9.03.01
>> Qt IDE: 1.9.2/5.12.10(5.12.10)
>> Platform: Darwin 64
>> Installer: J903 install
>> InstallPath: /users/bobtherriault/j903
>> Contact: www.jsoftware.com
>> 
>>     JVERSION
>> Engine: j902/j64avx2/darwin
>> Release-a: commercial/2020-12-05T12:43:38
>> Library: 9.02.08
>> Qt IDE: 1.9.1/5.12.10(5.12.10)
>> Platform: Darwin 64
>> Installer: J902 install
>> InstallPath: /users/bobtherriault/j902
>> Contact: www.jsoftware.com
>> ----------------------------------------------------------------------
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> 
> 
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