User-Agent: Mozilla/5.0 (Windows; U; Win98; en-GB; rv:1.4b) Gecko/20030427 Build Identifier: Mozilla/5.0 (Windows; U; Win98; en-GB; rv:1.4b) Gecko/20030427 If you have your taskbar positioned at the top or left of the screen, popup windows will be partly hidden by it, because their positioning is not taking into account the screen area taken up by the taskbar - ie the available screen area. eg a new window set to open at (0,0) will open at the absolute screen position 0,0 (the top left corner) which is behind your taskbar, instead of relative to the available screen space as you would expect. Reproducible: Always Steps to Reproduce: 1. Drag your taskbar to the top or left hand edge of the screen 2. Open a window that has a specified position at the top or left of screen (eg. 'left=0,top=0') - see testcase Actual Results: The window will open at the absolute position specified in the left/top position specified, regardless of whether the taskbar is in the way. Expected Results: The window position should be relative to the available screen area and open below or to the right of the taskbar as appropriate (just like regular windows do). The same bug does not appear in Linux (at least for me in KDE3).

This is a site I use which easily demonstrates the bug: Click the "log on" bottun towards the top right of the screen at: http://www.anz.com.au/ Just move your taskbar to the top or left edge of the screen before you do it of course.. (maybe this live testcase might even get this bug confirmed! ;-)

Pretty sure we have a bug on this but I can't find it and this has a nice testcase so I'm setting it to New.

Firstly OMG! ;-) (Ahem) more constructively, I can also confirm this bug on winXP (1.7b / build 20040316)

Changes in bug 239876 (I'm pretty sure) force all windows to the visible screen area, masking some of the symptoms of this bug. This testcase shows that the position is still not being calculated properly.