I know my TX2500 which is similar to the TX2 (same CPU and very similar chassis) runs fairly warm - but not as hot as some other tablets I've owned. My fan is also fairly loud - louder than most tablets I have owned, so, for me, its a trade off.
There are some things you can do to quiet it down a bit as well as keep it cool. First, use the balanced ot battery optomized setting. As long as you don't have to do any CPU intensive things, then the battery optomized will give you the longest battery life, the quietest fan and the cooler running cpu.
As far as cooling stands, you get what you pay for. Of course, the passive ones, or the ones without built in fans just allow air to circulate better but your fan will still run. If you buy a stand with a fan, then you may have to put up with that fan noise as well.
Try the power setings first and see how that works.
Now...one last thing. You mentioned "overheating". Are you saying that it is heating up to the point where it shuts itself down or crashes? In that case, you may have a defective unit. If you are just using overheating as a generic term, then try the power settings.
David
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