Hi, I'm trying to load a vrt file in 1.7 and it takes forever...so long that I just close 1.7 before it's done. The same file loads almost instantly in 1.6. Any ideas? Some more details: The vrt file is a collection of 10 geotiff images. Each geotiff is about 1.2GB. All geotiffs have external pyramid files (.tif.ovr) Thanks much, -Jeff