Corrupt Topo Tiles?

[steverod]

Fired up TopoFusion to take a look at the Yosemite-Mammoth Lakes region using topo maps from TerraServer.
(This is TopoFusion 3.973 -- NOT the beta with MyTopo maps.)

Many of the tiles download fine but then all of a sudden the tiles start showing up corrupted; they look like old-school video corruption. Shutting down and restarting TopoFusion has no effect. I erased the Maps index and Maps0.dat file, and was able to download a few sets before running into the same problem.

Has anyone else seen this problem?

To make things a bit more interesting, I'm running TopoFusion on Windows XPSP3 under VMware Fusion 3.1 on a Mac (OS X 10.6.3), although I've never seen video corruption like this before. Also note that the VM doesn't get destabilized, and the corruption remains even across TopoFusion and VM restarts.

[ScottMorris]

Is this a constant corruption or does it change as you pan or zoom?

As I recall, the tiles from Terraserver are quite messed up near Yosemite.  You might check on MSRmaps.com (new name for terraserver) to see if the tiles look like that.

It kind of sounds like not, though, given your description.  Let us know.