AutoCADder

Many users transferring customizations from older AutoCAD LT versions have problems with the changed file names in AutoCAD LT 2007 and LT 2008. Please note that your hatch patterns, linetypes, command aliases are no longer in the ACLT.PAT, ACLT.LIN, ACLT.PGP files (or the ISO-equivalents) but rather in the ACADLT.PAT, ACADLT.LIN, ACADLT.PGP files (or the ISO-equivalents). So the base name for the AutoCAD LT files has changed from "ACLT" to "ACADLT".
A small step for file system, a giant leap for customizers...