When there are too many tracks to fit on screen, (or when a few tracks are set to display very deep top-to-bottom so they fill the screen and more), Audacity 1.3.7 can become very confused about registering the location on screen where the mouse pointer is when I click on a track. Worst case occurs with a dozen or so tracks in a project and when one track is half visible half hidden at the bottom of the PC screen area.
The expected behaviour on any mouse click should be that Audacity would register my "click" based on whatever screen object was under the mouse at the instant that I click the mouse..... and then, after doing the requested action the screen could be redrawn with, for example, a track drop-down menu visible, or a track selected, or a track volume level slider activated, or whatever.
The actual behaviour I observe is that Audacity often makes a partial attempt to redraw the screen first, and then it decides what screen object I was intending to click on. Various strange results can occur.
The most serious example is if I click somewhere near the left edge of the screen to select a track - and the premature over-eager "partial" screen redrawing happens to put one of the track delete X button under the location where the mouse was clicked. Result is that the track immediately above the track I intended to select is deleted!
That has happened to me twice recently when editing a project.There are a number of other minor screen handling issues in 1.3.7 beta. Perhaps they are all related to some common feature in the system programming?
For example, using the smart-tool (the thing with a star or asterix symbol on it) it can be very difficult to persuade Audacity to recognise that I am trying to pick-up and move a track envelope point. About 95% of all enveolpe points are recognized perfectly OK. But a few of them seem to become invisible to the envolope tools. This most often occurs with envelope points at the end of a track and with points at 0dB - touching the edge of the rectangular box the track is displayed within. Sometimes switching back to the dedicated track envelope editing tool fixes the problem - sometimes even that tool is defeated, thinking that I want to move the edge of the track or make the left channel display bigger than the right channel display.
My System: Audacity 1.3.7 beta - Windows XP - Dell Dimension 5150C