Just purchased IBM Aptiva that came pre-loaded with Win98.Have had to reformat hd and reinstall software from recovery disk 3 times in last week. About every third time bringing system up, have error of missing files. Sometimes Himem.sys, emm.sys, various .dll files, you name it. This is driving me nuts!! Read some previous questions, wondering if possible link is my Zip drive? Maybe some compatibility problems? Anyway, any help on how to restore Win98 without reformatting hd would be gratefully accepted.