I am an avid AVG user but recently I have noticed that my computer is running sluggish. I thought nothing of it and deleted old programs that I didn't use anymore, stopped programs that I didn't need to start in the msconfig startup manager. Seemed to speed things up a little but not what it should have. Then today I started getting a rundll error saying that c:\windows\system32\sewinuja.dll can not be found. After I started getting this message I noticed that my wifi wouldn't connect unless I completely shutdonw and rebooted. Is this a virus of sorts that I haven't heard about yet. Help please. Also when these issues occur and I try to shut down the computer it will not shut down using the windows shut down utility I have to use the power button.