Whenever I'm on the computer a variety of messages keep popping up telling me that there are critical errors on my computer, that my registry is damaged and corrupted and that I may lose all data unless I visit a website (a few different ones have appeared, including ToFixReg.com and www.registrycleanerxp.com) and download something or other. I don't want to download something that might make the computer worse.
On top of this, it is now very difficult for me to access my email from my own computer (it is fine from others), it just loads for ages and doesn't seem to get anywhere. This happens when I am using a few other sites where I have to log in (including your site). I get as far as logging in and then I can't seem to get any further. When trying to access your site for help I had to log in about 5 times and each time it told me log in had been successful, but when I tried to perform an action (such as posting a new topic) it told me that I wasn't logged in and redirected me to the login page.
Another problem that began appearing at the same time so might be related or seperate is that 'Runtime Error' messages keep appearing, describing various problems with Line (number). The messages have said things like unterminated string constant; the dojo is undefined and they always ask if I want to debug. When I press yes it tells me the problem is undefined and won't let me get any further with the debugging process.
I hope you can help and that I have included enough information.