Irish Mac users are looking around for a new bank as the National Irish Bank (NIB) cuts them off from its online banking system.

The NIB online banking service was changed over the Easter weekend. Now the bank's business users have discovered that online access to business accounts using a Mac isn't supported any more.

Local Mac user website Mac Information reports that NIB failed to warn business customers about the move. The bank had previously said online banking would continue to support Macs, but did not warn that business banking would not.

The situation is little better for the bank's personal customers, according to the same source.

Mac users had been asked to contact the bank to request special boxes that would be used to access their account data online if using a Mac.

It's reported that the ordering system for these boxes has failed, leaving many customers unable to access their account. The move also affects Windows customers who don't want to use Internet Explorer.