Just got an ACER Aspire. Just got an ACER Aspire AS5720Z notebook.It has a 5-in-1 card reader.I

Question

Just got an ACER Aspire AS5720Z notebook.It has a 5-in-1 card reader.I have a memory Stick Pro Duo card that is extremely small. The manual says the card reader will read it. There is NO eject button that I can see. I'm afraid to put the card in without knowing how to eject it.How do you EJECT the card from the card reader? Is there a software command somewhere to do it?