I bought a new dell computer with NIS 2004 on it, I updated to Norton 2005 and after two weeks got a measage LU1848: Couldn't create callback object. Did some research and deleted all norton and symantec from reg. now when I try to install norton I get: can not find instopts.dat? Norton says to delete some reg keys, did that but no luck. This is not good for a reinstall of norton Why?