DRIVER_IRQL_NOT_LESS_OR_EQUAL error sending e-mail I get that message pointing to 'ndis.sys' when I try to send a e-mail with SMTP authority using Opera V6.05 w/ SMTP Auth V0.9 This also happens with just Pegasus Mail running! I thought it was a problem with SMTP Authority, but the same thing happens with Pegasus Mail! Here is the KB article from M$ on the error: http://support.microsoft.com/default.aspx?scid=kb;en-us;293077 Here is the overview from M$ on ndis: http://www.microsoft.com/whdc/hwdev/tech/network/ndis5.mspx My network card is a Linksys LNETX100 through a Netgear router I have DSL through Verizon if that matters. I'm running 2k Pro w/SP3 I do see SP4 is out, with 2 issues on something simalar to this, but with the Server edition: http://support.microsoft.com/default.aspx?scid=kb;en-us;330716 http://support.microsoft.com/default.aspx?scid=kb;en-us;810823 I'm not ready to instal SP4 yet.........too early. Any other ideas??