>>>Hi everybody,
>>>
>>>I can open websites in FireFox, but for some reason trying to open them in IE 7 results right now in 404 error. From FireFox I can not login to ASP.NET forums. Clicking on sign in simply does nothing for me in FireFox.
>>>
>>>What could be a problem? I don't want to re-start my PC
>>>
>>>Thanks in advance.
>>
>>Try clearing your cashe and restarting IE. - it sounds like you might have a piece of spyware or something....
>
>
>I tried, but it didn't help :( BTW, I found the Enter key doesn't work in FireFox. I tried member search (searched Nick N - he hasn't been here for a few weeks) and I had to press on the icon. Pressing Enter did nothing.

Really sounds like you have some adware or spyware on your system - that you you need to reboot. Do you have any anti-adware/spyware you can try running?