Thanks,
I've been lurking here for a month or so.
I'm trying out Bricscad with the intention of migrating our office to it.
We've been working on Autocad R14 since the last ice age,
and i rather think that it's time to move on.
I've been gradually adapting about 1.7mb worth of lisps to Bcad over the last few months.
It's been easier than I thought, but with a number of idiosyncrasies.
This site has already been a great help!
For example, this thread has brought this particular issue into focus for me,
and probably explains half a dozen strange problems with some of my lisps.
I'll cross-post this issue over on the Bricscad forum.