Hi, Thanks a lot for your help. I have enabled the widget option. I reinstalled the R and the BioConductor. This time I made sure I am installing the released packages only. It would be great if there was a script that could uninstall the BioConductor. I had problems related unistalling BioConductor. In my case the getBioC(isDevel=TRUE) did not work. Maybe I was not able to figure out the exact process to do it. Hence I reinstalled everything again. Thanks a lot to all of you . Your mails were of immense help to me. Regards, Tapan