Hi there - my first post so hope I don't embarras myself!

I've just purchased an HP 8540p laptop - windows 7 proffessional 32bit (locally through micro ingram)

I had been using a telecom t stick on prior machine, but noticed the new machine has a sim card slot under battery, so thought I would take the sim card out of the t stick and try it in the battery slot.

Initially it wouldn't find any network, but after talking to someone in a call centre at HP - I downloaded some? networking firmware from the HP site - it now can see telecom and Vodafone networks, but when trying to connect to telecom, gives and error stating "incorrect APN or access string or contact provider to enable data service on this device"

I've talked to telecom a few times and tried APN's - internet.telecom.co.nz and direct.telecom.co.nz - IP & DNS are set to auto.

Possibly still a frequency issue? although it show good signal strenth on the HP connection manager

Could someone please offer any advice of what to try next?