I wish I could block IE users. They almost are more trouble than they are worth. Luckily only about 20% of my users still use IE6. :p
Technically you can, not that I can understand why you would want to block what is the most popular browser out there. My personal sites stats show that IE makes up roughly 37-40% of users, and being a technically orientated site they probably aren't representative of the Interweb at large, for that you might be better looking at thecounter.com (http://www.thecounter.com/stats/). That shows 80%, which is probably closer to actual usage.
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Richard Heyes
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