Actually, the newest driver is doing ok. I've been running it for several weeks now, and while I have had some lockup "freeze" issues, I think I've traced them to a corrupted Direct X file. One thing I will say is, you should find and download either coolbits or NvTweak. The newer drivers seem to not set the temperature threshold properly in older cards and the fan doesnt kick on early enough. Your MX may not even have a fan. I'd still download the tweak file though, as it allows you to set warnings if the temps get too hot and make other adjustments as well.