I've got a Yamaha DVD-S1200 that is starting to freeze up part way through a movie (1.5 hr mark usually). It will usually continue to play after a second or 2 then it will freeze up agin anfter another minute or so. This is getting old... very quickly. Supposably this is a rebadged RP-91 with a different front fascade. Has anyone experinced problems like this with theirs? I can't afford to buy a replacement of similar caliber and would like to try to make is last until tax returns come back so I can buy a Denon 2910. I think it has to be a heat issue causing the problem. I would be open to gluing a heat sink on the IC chips to both increase thermal mass convective heat transfer. This would: A)Increase the time it takes to get the chip hot enough that it won't properly operate and B) hopefully allow the chip to reject heat as its being produced so temperature won't even be an issue. Would this be advisable to do or would there be adverse consequences that I am not thinking of.