Ok, every now and then my comp will stop letting me sign into anything at all, steam, yahoo, msn, WARCRAFT, etc, however my internet still works. I have tried scanning it with webroot, avg, mcafee, norton, and some others I don't remember. Nothing has fixed this problem so far, I would appreciate some help, so as I won't have to end up rebooting it periodically, thanks for anyone help.what do you mean by your internet still works?
guess you using xp,download avira
http://www.free-av.com/
and superantispyware
http://www.superantispyware.com/
update them and run in safe mode.scan.
Make sure you didn't make little mistake like forgot to input the DNS,Ip address & etc.
Ok usually when you cant sigh into programs it usually means your I-P is off-line , a lot of people don't GIVE the troubleshoot button a 2nd glance , when you sigh into msn , click the troubleshoot button when it errors you , you will notice your i-p is off-line click repair ....... it should clear it up for a while .... ive noticed when this has happened to me i have actually mange to log on and had a brink in the actually connection , windows firewall or any firewall for that matter can cause this , make sure all on-line applications you want on-line are in the firewalls addecption list ....

Tony Well, actually by what I mean the internet still works is that it will let me surf on any webpage I don't need to log into. I've scanned with a bunch of different things in safe and regular mode, and it wouldn't be that firewall would be intercepting it since it logs in beforehand with same configurations. I looked through the trouble SHOOTER for warcraft, steam, msn, and yahoo, and none of them helped me a single bit. Everything works fine except for things I need to log into to do. I already re-booted the computer so the problem is gone for now but it seems to like to COME BACK a lot and is a real hassle.Are you the only user on this machine ? ?
If not are you sure you are logged on in the Admin account ? ?
Have you ran any off the wall registry cleaners recently ? ?No, yes, yes.Well that's what we look for here...tons of info.Did you change any permissions in IE explorer?Oh I'm sorry, it was yes, yes ,yes, but yeah I have not changed any permissions and it's not just with online web pages. It is with all programs that require signing in, not just online.