Resending because I got a rejected message: Is there a known problem with Mac OS 10 and IE version 5.2.2 or 5.1.5? We have customers that are using MAC OS 10 and Mac ie 5.2 and ISA will not authenticate them. Roll back to IE 5.0 for MAC and it works. I found one message regarding this saying go back to IE 5.0 or earlier, however I cannot find a definitive statement. If the user uses Netscape they experience no problems with authentication. Any ideas guys? -- Carl