While running manual or scheduled system backups with Norton Ghost (15.0.1.36526), the backup fails when Norton Internet Security 2011 (18.5.0.125) detects and blocks a "MS ASN1 Integer Overflow TCP" attack by the originating computer (X60 laptop). The block causes a Windows delayed write failure, and Ghost aborts the backup. This only happens when running backups under Ghost. The X60 laptop is running WinXP Pro SP3. The backups are to a [linux] file server sitting on the network. Disabling the notification doesn't help. Any suggestions for fixing this are appreciated.