Occasionally I will find that I cannot shut down my dialup networking connection. I can right-click on the icons in the tray, select disconnect, but nothing will happen. I can click on "status" and try and disconnect from that dialog but it still won't. Eventually I reboot the system to shut the connection. This is an intermittent issue arising maybe once or twice per week.
I am running Win98SE, 56k modem, Sygate (although the modem is in this machine).