Full text search not working :(

Hi all …am using university inet connection … i have proxy server activated in our hostel which i have configured in IE and IE is connecting to inet perfectly from which am able to access sciencedirect n so on … the problem now is … when i givva a full text search Endnote is thinking for a while [when i noticed the network icon in system tray its not glowing continuously its blinking sluggishly] and skipping the process how ever it worked once n i downloaded few papers but i dunno why i worked tht time n not now !! … also i can able to do online search and getting results for citations … Help needed to fix this … thanx all