So I am in a little dilemma here. I have a late 2009 Mac Pro and it was working fine. A couple of days a go, the bluetooth Apple keyboard would just flash green. I have been through this before but it usually starts working after I reboot the keyboard or take out the batteries. This time, however, it persisted and I decided to ignore it for then. It started to work again for a day or two and now it's in the same spot. I tried a reboot on my Mac Pro but now the problem is that I cannot type in my password to login to my account. I do not have a USB keyboard at hand but I have a feeling that is my only option. This is the weird part of this problem: I login to the guest account which only accesses safari and I can use the keyboard there without any issue. Any ideas what the issue is?