Has anyone on the forum used the Bafo USB to serial connectors for communicating with a PIC?

My config. is a Celeron 2.66 desktop running XP with Sp2.

In my experience, the interface works okay for a while, but if I switch off the PIC power for some time (keeping the serial window on the PC on), the interface does not work. I then have to close the terminal window, plug out the USB-to-serial, plug it in again and then run the serial comms. window again.

Is this normal with USB to serial adapters? I tried looking for the latest drivers, but that did not help.

Any advice would be appreciated!

Regards,

Anand