I am having this exact problem with my Zotac 470 stock. No problems at all during games or benchmarking/stress testing. Only occasionally (seemingly random) upon boot. The problem with this kind of thing is if you send it back to either the retailer or manufacturer, it will probably pass all...
None of the common BSOD on boot here 'though I did get a couple during gaming which I didn't get with 7.2's. Also getting a "Display driver atikmdag stopped responding and has successfully recovered" message with these, where as with the 7.2's I got "R300 has stopped responding". This is in...