Asus GTX670 TOP issues?

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
VGA 02G-P4-2678-KR GeForce GTX 670 FTW 2GB 256-bit GDDR5 PCI Express 3.0 x16
$407.99

I haven't run across any stability issues in my browsing of the forum.

I have had a positive experience with returning a defective Asus card before. Very easy, and I got a brand new in the box replacement in a few days.

Yes, I would have thought if there were REAL issues, there would be a flurry of comments, here, or on Asus forum. It's just, when checking various sites, for availability, came across a few recent comments, about stability, and a supposed "dip" in Asus' RMA performance. Even if not "representative", tends to "sow the seeds of doubt"

You've probably sorted out your problem by now but there definitely is/was problems with these factory OC'ed cards (i.e. they're unstable under boost). I've read a lot of posts going back to early 2012 and found that Asus released a VBIOS update in June 2012. This stopped the crashing & red screen issues (BF3 seems a popular victim) for other people but I'm having a nightmare. I have 2 x Asus GTX670 TOP in SLI and have downloaded the VBIOS update from Asus.com but it won't work. I double-click the exe file and press 'Run' but a dialog box pops up saying:

"Your graphic card of current system don't match this VBIOS" (The bad grammar is from Asus.)

I know I've downloaded the correct BIOS, so what's going wrong? All I want is to be able to play BF3 on both cards. Has anyone else tried to update their VBIOS and got the same error?