As can be gleaned from one or two other posts, DSV1.7 (and earlier) on Ubuntu Edgy 6.1 doesn't work. If you try this then you will see Memory usage go to 100% and the system have a go-slow for 5-10 mins before a seg fault.
Running with debugging turned on gives the following
./lib/DSVisualizer17-bin
X Error: BadMatch (invalid parameter attributes) 8
Extension: 154 (RENDER)
Minor opcode: 4 (RenderCreatePicture)
Resource id: 0x136
Segmentation fault (core dumped)

Any chance of a port?