I have no problem importing the 8 bit (which is the same terrain size) so I don't think that's the problem. The problem is that all I've got so far is a .ter file (terragen native file) and haven't found a way to export it out to a dem file (terragen only has options for a 255x255 chunk export to lightwave, or the 8 bit or 16 bit raw files, and finally a vistapro terrain file (totally useless at this point). If I could get a hold of the original dem file it would definately solve my problem, the problem is I can't get ahold of it so I'm trying the "reverse engineering" approach. The Dem is the new 3meter resolution file created by the usgs of Mt. St. Helens. I've found where to get it but the interactive map that allows you to locate the data to download doesn't work (displays a blank blue screen where the map should be). The help file they provide simply says "if the map doesn't work, change your screen resolution to 1280 x 1024" which when I do doesn't fix anything. I've sent them an email but I'm not holding my breath on whether or not they'll actually pay it any attention. If anybody wants to give it a try, here is the link to the usgs site I'm trying to get the DEM data from: http://seamless.usgs.gov/website/Seamless/# Anyway, I'm not sure what else to do at this point, I'm getting annoyed at the inability for people to make a simple website that actually works rather than trying to do all this fancy crap that doesn't work unless you stand on your head and touch your toes while juggling 3 watermelons :)