I get "dongle not found" when I try to open LW 9.6 on my near-new Mac Pro Xeon 3 GHz 8-core, running Leopard. Tried every USB port, rebooted, stood on my head.... similar Mirage/TV Paint Sentinel dongle works fine in any port. Tried LW dongle with Mirage dongle removed, because I got a conflict when I put both on a G5 Quad a couple of years ago, fixed by swapping them to each other's ports. This time, didn't help. Same dongle works on my 6 yr old Pentium 4, but although it lights up on the Mac Pro it never shows up. Been struggling with this for days now - downloaded latest Sentinel driver 7.3.03 for Mac, it said it installed, but it didn't help. Still runs in Discovery mode. So I don't get a Product Lock, and can't register.
Are there many users getting problems with Sentinel?