i am looking for this driver. it is very important.

Support Information:
Device Type: Modem / ISDN
Manufacturer: acer
Model: hp156m3
Interface: Other
Operating System: Windows XP Professional
Age of Device: Not specified
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=&qa5=10&qa7=1500&dp=3&qm0=hp156m3&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=acer+Modem+%2F+ISDN+acer+hp156m3+Windows+XP+Prof essional+)

are you sure it aint the motorola HPI56M3 56K
http://www.mecer.com.br/Modem_Motorola/Motorola_Driver/Internal/PCI2/WinXP.zip