Mac Volume won't let me download software
I am taking an online class and need to download software called Securexam Browser. I had downloaded it two years ago, had problems recently so I unistalled it. Now I am trying to install it again. There is an introduction, I agree to the terms, and then in gets to the Desitination Select. It askes my to select the volume I want to install the software. The Macintosh HD is the only available volume. However, there is a red stop sign with an explamation point in the middle of it. If I click on the icon it say I can not install the Securexam Browser on this volume.
I need to take this test next week. Anyone help me. I tried to create a new account with administrator privlidges but had the same problem. Help please.
Thank you,
Ryan
Macbook Pro, Mac OS X (10.5.7)