ATT Global and login scripts

Hi,
I have set up AT&T GLOBAL NETWORK access on a number of Toshiba 3020ct Portege laptops. It works great! Most connections are at 56K or a little less. The problem comes in with our login script. SOME of these laptops never get it. They can’t even map drives manually. The odd thing is however, that they are able to get e-mail from the exchange server without a hitch. I can get validated in DOS and get the mappings in DOS, but not in windows. They all have Windows 95. Can anyone help me out with this one?

Thanks in advance!

Joe