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No.1 When I open my HD, the left-hand panel no longer shows my 'Home' icon.
How to get it back?
Open Finder prefereces, at the top click on Sidebar, tick the box for home.
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No.2 Occasionally when using the mouse a pale grey rectangle appears on the
screen. Holding the mouse away from the pad usually makes it disappear
but it's a little annoyance I could do without. It happens regardless of the
mouse I use — a Magic mouse, wireless mouse, Intellimouse or Logitech.
The cure?
Any chance the mouse(s) has a scroll wheel? pressing down on the middle button, under the scroll wheel, does that in Firefox for me, and the page will automatically do a slow scroll, in what direction I move the mouse above or below the box. Clicking once more makes it stop.
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N.3 Occasionally, for no apparent reason, the window I'm working on almost
vanishes, either to the left or right of the screen, leaving just a grey line
showing at the extreme edge. Clicking on that grey line brings the window
back, but it's irritating. How to stop it happening?
Only happens to me in Adobe CS products, but I'm not familar with Tiger, yet!