I had a terrible time trying to get my Pronto connected with ME. I had to upgrade to 2000. Some people are having trouble with 98 and some are having trouble with ME. The only advice I can offer is uninstall any software that uses the USB ports such as PDA or camera software. Next, install PENG and then reinstall the other software. It didn't work for me for some reason so I just found a copy of 2000 and finally got it connected. I know it has worked for other people with this problem. Good Luck...
Phil