My dad wants to replace his 33.6 modem with a 56k one. He bought a winmodem, but when he installed it, he found out it required an MMX cpu, which he doesn't have (he has an old Pentium 100). He doesn't want to spend too much (i.e. for a hardware modem), but is a Pentium 100 even fast enough for any winmodem? If so, can anyone recommend one that will work?