I just installed a new Actiontec 56K PCI Pro modem into a K6-2/400 at a customers request. There is 128MB memory, Windows 98 (first edition), Motherboard is DFI or something like that.

The modem installed fine, but every time I try to create a new Dial Up Networking connection, I get "RUNDLL32 caused a General Protection Fault in User.exe at 000c:00003ebb. I've uninstalled DUN and re-installed it about a hundred times. I tried installing version 1.4, but same thing every time. I uninstalled every piece of software in the machine. Removed and re-installed all of the networking components. Any suggestions?