blender problems

[Goofy]

blender question: was wondering whats going on. I think I may know, but wanted to check. I created 2 terrain with bryce and exported it as a .obj and imported it into blender, now blender in edit mode is very slugish. also when selecting a vertice it sometime jumps to some wierd area. which messes up everything. It only happens with these particular objects.

It's to the point I can't even use a normal circle mesh with out it coming out like some weird art form. The question I have is does blender get flakey with to many vertices? what I don't understand is I've done this before and have never had these problems. It's just lately its been happening. It makes modeling very irritating.

[Nadnerb]

If blender has become slow or flaky, try saving a .blend file, closing blender, and opening the file. Should clear out memory fragmentation problems and such that may have accumulated during import.