[quote="Samantha Fuller":2vzgbfac]The reason the sections of wall keep disappering is because that wall is built with half of it overhanging the edge of the sim with the center balanced pecarously on the knife edge of the sim, so anything which causes it to shift over even .oo1m even for a millisecond causes it to topple into the void. 
Check the Mini Map to se what i mean. The solution is to move the whole wall in .5m. 
...[/quote:2vzgbfac]I will try this out next time I am in the sim, but I don't believe this is really the problem.
The reason I don't believe this is that the wall has always been in the same location and only recently (with the changes to the parcels) did it start disappearing. On the Northern and Eastern edges of the sim, the wall is simply pushed right up to the edge, it can't be pushed [b:2vzgbfac]out[/b:2vzgbfac] of the sim so the general technique is to push it as far as it will go and then let go. This should leave it right at the extreme edge of the sim and is kind of "standard practice" for this kind of thing. It makes no sense to me that a bunch of prims all standing in an exact line like that would all stay in place except *one* of them keeps drifting all by itself and disappearing? it's possible but it doesn't sound that likely to me.
Another thing to consider is that the wall also started disappearing on the south side which is nowhere near the edge of the sim when the parcels changed. Also, a method that has alleviated the problem in a few cases so far has been to link the bit that keeps disappearing to another section nearby. If prim drift was the problem, then the entire link-set would disappear, but in fact this often solves the problem until it breaks out somewhere else.
It seems to me that it's more likely about prim allotments on parcels and that old bug in regards what happens to the prims when a vehicle or some kind of automatic rezzing takes place. I have no ability to look at or alter any parcels or parcel limits or settings however, so I can't be sure and I can't do anything about it anyway.
As far as the groups go, I have been purposely *not* setting the wall to the Land group (although a few pieces are I think), for a couple of reasons.
The main reason is that the groups are still all screwed up IMO and I have had problems with the Land group in particular in terms of being able to edit or move things that others have set to this group or others being able to access things that I have made that are set to this group. I have posted about this problem and the fact that the groups need revamping many times and never got a response of any worth or utility.
The secondary reason is that it's my wall, why should I put it in a public group? Again, I have posted many times about how no one in any official position in the CDS has ever done the "right thing" by me and given me any kind of recompense for all the work I have done on it as well as other projects I have made for the city and the CDS. I am not trying to be bitchy about it, in fact I have been exceedingly patient, but I would be an idiot to give up on something that took me two or three weeks of solid effort to make, and hundreds of hours to maintain for no return.
It's not even about the money (even though other members of the CDS have gotten some real sweetheart deals for construction in the past), it's more about my own sense of personal dignity. If you sense that I might be slightly pissed off about it, you may be right.
[i:2vzgbfac]When[/i:2vzgbfac] I get around to it, I will offer the wall for sale in my shop and anyone can buy a copy and replace the bits till the cows come home.
In the interim, if anyone wants to remove it and put up their own wall, be my guest (as long as you have the permission of the CDS to do so).
