Hi Mark,
I think I may have come across a small bug when displaying graphs.
Everything works fine up until I draw a trend line. After I draw it,
when I place the cursor over a marker, no tool tip appears. To get it to
re-appear, I right-click on the graph, select Graph Options==>Display.
The box for "Display Marker Data in Popup Tooltip" is checked, so I
uncheck it, then re-check it, click "okay" and the tooltip re-appears.
I'm using V12.7 on a Vista SP2 OS.
Thanx,
Sheldon