Go Next Card Sluggish in2.7.4?

[Robert Brenstein]

>I have a little dBase in a stack with about 900 cards, each card has 
>40 fields.
>one field in the cards has a fair bit of text data. Still stack file 
>size on disk is only 5.8 megs
>Not really that big. I've got plenty of RAM and plenty disk space.
>I've put together stacks that run to 15 megabytes in size and
>under previous versions they ran very fast.
>
>But under 2.7.4  a button
>
>On mouseup
>  go next card
>end mouseup
>
>throws a busy icon, after a bit of time, the next card is presented.
>  I have arrows set to navigate... if I hit the right arrow, or cmd-3 in the
>IDE I get the same sluggishness.

Is the behavior same when you add 'lock messages' before 'go'?

Robert