Other than ESD which has already been mentioned, if the device relies on any rubber components (like capstan rollers) the dry heat might cause them to dry rot. Same for grommets. However, the USAF seals up its old planes and stores the in "the boneyard" at Davis-Montahn AFB in Tucson, AZ, so it can't be all bad. Bill __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com