NetRadiant is based on GTK 1.5 you better move the entities and use netradiant.
The problems you have are probable related to your Operating System…
[QUOTE=Mateos;347571]Thank you. I just have not found a free tapir model so far
Well the bottom level of the Tank Depot is done, nuke racks, tables, crates… Just one issue, recurrent in all the parts I used it:

It Gtk it is perfect, I made it to fit so you have the edges on top/bottom/left/right instead of a simple cube. And in game? Cylinder. Why? :/[/QUOTE]
I dont remember very well the patches, if there was a way to have em blocky or rounded. In any case you can make an ASEout of these things, and define while compiling the subdivisions, and therefor make it blocky.