As you may know, some of the earlier Wiis had issues with artifacts (in the form of random black dots) appearing on the screen, which is blamed on WiiConnect24 for the most part. I've had the issue since Super Mario Galaxy 1's release, and recently it has gotten worse (I really want to fix it). A lot of places I've read had stated that it was an issue with the heatsink, so I'm trying to figure out if it's even possible to repair it (without replacing it). My Xbox 360 (of 2008) RRoD'd recently. It had been showing artifacts on the screen before then also (although they were showing as greyish bars during black screens). I attempted the RRoD fix (open, remove X-clamps, replace heat compound, overheat, cool it down), and it worked. It even fixed the artifacts. This makes me think that it's possible to fix a Wii with an artifact problem the same way. Should I attempt to do a similar type of fix to my Wii (which is out of warranty)?