3c905b-TX card not doing 100mbps

[root@helium.persius.net]

I got 2 10/100 autosence cards (3c905b-TX PCI) in 2 computers.  I got a
3com Super Stack II Switch 3300 10/100 auto-sence switch.  i got both
computers pluged in to the switch.  They negotiate 100mbps on startup, the
switch and cards both detect 100mbps.  When the linux driver loads, it
goes back to 10mbps.  Is there any way, any flag or anything, that will
allow me to force 100mbps?  Or any documentation that is related to this
problem?

Thanks,
Brad