I have an IDL script that is running through a collection of rasters. 95% of the rasters run through the script fine, the 5% that do not stall at a envi header info popup. I need a way to suppress this window and write to a text file the rasters that generate this error. I am not too familiar with IDL, and am hoping that there I can raise an exception and then continue through the script. If you could please point me in the correct direction or provide me some sample code, it would be much appreciated.