yes, card hotswapping is correctly handled by the latest beta: one beep when taking card out and two beeps when inserting card. The relevant modules are correctly un/loaded.
irq_mode=2 or 0 or nothing doesn't change anything...
About one month ago I have tried a Xircom CreditCard 10/100 and that one worked without any problems (but it is 16bit).
Thanks for all your help and advice.
PS: I'm going to get such an old Xircom card...