After years of trouble free use, I am getting a Buffer overflow warning from McAfee when useing IE. When I OK the message I use task manager to end the IE session and shut down. When re-booting a folder named Common appears on my desktop and in it are two files. One is titled Helper.dll and is 285 KB and the other is Helper.SIG and is 50 KB. When I delete these to the recycle bin I can resume internet access with IE. This has happend about four times and I havent a clue as to what is going on. Any help would be much appreciated.