Gary Chambers wrote:
> Available on the development universe under the "User Interface" category.
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There is a bug in drawing / updating list panes on mouse enter. You see 
this by enabling Preference debugShowDamage. I have seen this bug before 
and it is triggered when a morph is added to a owner but it's position 
is not set and it's therefore added to World topLeft. I'm not sure which 
morph is causing it here, it could be PluggableListMorph, ScrollPane, 
LazyListMorph or some other.
Drawing bugs slow the feel of the UI down quite a bit.

Karl