When XY starts, if the last time I quit it it was minimized (I have it set up to minize to an icon in the notification area), it starts minimezed again (that's a feature I think
I can reproduce this every time:
Now that I think of It there's another one that may be related... repeat the above steps to the "restart XY" one. What appens is that an icon for XY is added to the notification area, but a new "window" also appears on the taskbar. Clicking on the icon restores XY and removes the icon from the notification area, but clicking on the thingie in the taskbar instead restores XY without removing the icon.
XYplorer Beta Club