This is my new (about a month) Windows 7 machine. Initially installed v3.971, and then upgraded to v3.973.
I initially had a lot of slowness with TopoFusion in general. (and this is a darn fast machine for everything else, it was running TopoFusion slower than my old XP machine).
I found one problem is that the Preferences for Internet/Number of Connections had been set to 1 on install. I have a pretty fast connection, so increasing that increased the download speed.
But it still runs slow at times. Particularly on our SAR mission last night and this morning, where I had no internet connection (but did have the area we were searching cached)
Now that I am back home, again with internet, I was still having slowness frustration (most noticeable symptom being the mouse not being able to keep up and becoming extremely jumpy, and menus taking a long time to drop, etc.) and I just noticed the "Elevation = downloading..." message along the status bar on the bottom of the window. I tried turning off internet downloading, but it still was slow and displayed the same message.
I scrolled over to a different area, for which I seem to already have the elevation cached, and things were speedy and happy.
Went back to my mission area, 'downloading...' and slow again.
Tried to figure out how to turn off elevation downloading, but didn't find the setting. However, I did click on the profile and playback tool and then back to the hand, and at some point in my playing, somehow the elevation locations seem to have been downloaded for my original location. Now it is displaying elevation at the bottom status bar, and running like a champ.
I tried going to a new city, it downloaded the tiles, and then the elevation, and properly displayed it in the Status Bar. So I am not sure how to reproduce this problem, or why the elevation got stuck in the first place, or how I managed to 'fix' it.
But I thought I would post this for information. Plus to find out how to turn off elevation downloading if it is insisting on trying to do it even when I don't have an internet connection.
Thanks!