Q: What if the system hangs with the LBA Pro installed

A: There are 10 jumper pins on the LBA Pro: 2 rows of 5.  With the LBA Pro upright (to read the text) you will notice to the right a row of 5 pins with another row of 5 pins directly under it.  The Jumper on the left two pins disables virus protection (enable virus protection by removing the jumper.)  The two pins directly to the right of them are unused.  The remaining jumpers are for addresses.  By placing the second jumper on the two right most pins you will select the corresponding address.   You have three options for addresses by moving the jumper to the left one set each time.  One of them should allow you to overcome whatever address conflict you are experiencing.