Opening up a schematic from some time ago, I was presented with a display in which node identifying tags were extended off-window. Snap-shot here:
http://www.magma.ca/~legg/TVS/tag_stretching.jpg
Oddly, it affected only later revisions of the same .asc file in the same folder. The difference being that some voltage sources were assigned non-static values. Looking at the text in these files shows no differences in the tag art references. Some files show normally until you try to run or alter them - in which case the tags suddenly begin to show the distortion.
RL