You mean select from a Data Validation dropdown list?
Do you want to actually remove the selected name(s) from sheet2 or just
remove that name from the DV dropdown list?
If the latter, see this from Debra Dalgleish.
http://www.contextures.on.ca/xlDataVal03.html
She also has a sample file to go with the instructions.
If that won't help then add a sheet with a description of what you want,
upload the file to a file-host, post the link to that file-host here.
If someone wants to take a look they will download the file to their
computer.
http://www.freefilehosting.net/
http://savefile.com/
Gord