rundll & tapi pagefault error

When I run MSDun I get this error about 1/3 of the times I run it.

RUNDLL32 caused an invalid page fault in
module TAPI.DLL at 0014:0000764d.
Registers:
EAX=000085fa CS=2f27 EIP=0000764d EFLGS=00000297
EBX=00000146 SS=2e57 ESP=00008526 EBP=000086c8
ECX=0000ffff DS=2eff ESI=00009000 FS=0000
EDX=00002e6f ES=2e57 EDI=00000005 GS=0000
Bytes at CS:EIP:
26 80 3c 2c 75 f9 06 56 ff 76 fa 8d 86 32 ff 16
Stack dump:
00000000 2f070004 2f070162 2e6f53a0 01460146 01462e00 00000146 014635c4 01460000 00000000 3a4000c7 00000146 01800146 53a0352a 01462e6f 85000146

I tried to use a different dialup program (ConnectPal 4.6), but that seems to give the same results as MSDun.

Help if you can...

-LiFE