IE8 won't launch. I don't know how long it's been like this because all I ever do with it is check for MS updates - and that works. But I cannot launch standard IE - it gives an error. I have deleted it - and the IE8 updates - and reinstalled them from scratch - with no joy.

The only time I recall running it recently was when I wanted to attend an MYOB webinar. If didn't work for me - and they never got back to me. Their webinar was different from others I attend - they have their own webinars - it said they preferred IE instead of my usual Firefox. I can't remember the details - but I did try FF first - even downloaded something they said I needed - but neither FF nor IE worked.

Naturally today when I went to test a site that didn't work in FF in IE and found IE wouldn't launch, I suspect this visit - normally I only use IE to test when someone tells me it is working but not for me in FF. But I have no idea where to start disgnosing the problem.

Any help greatfully received.