[Spambayes] SpamBayes installs but doesn't run - update

[C Stephan]

I tried downloading and installing version 1.1a3 (rather than 
1.0.4).  Again, it installed with no problem, and this time the 
SpamBayes icon appeared in the tray (or whatever it's 
called).  However the moment I hovered the mouse over the icon it 
disappeared.  Double-clicking sb_tray.exe brings it back (though no 
running program shows in Task Manager), but it's impossible to click 
on it as it disappears as soon as the mouse reaches it.