I have a Mac G5 PPC, and a Macbook Pro Intel. I use my USB iBurst modem on them. The iBurst used to work fine. But lately have been having big problems. With both machines the modem disconnects all the time. I have to physically remove the modem from the machine, then connect it again. This happens like every five minutes. I tried reinstalling the driver, but that didn't seem to help. Anyone else having the same problem. It cannot be my area I have full signal here.