Drop those pitchforks m15x owners and prepare to update, Alienware just released a fix to your overheating (and downclocking) problems. A new beta BIOS -- X29b P3A30 -- features a few tweaks including the ability to spin-up the fan to a new 5400rpm max. So more noise for more speed; sounds like a reasonable trade-off to us. Unfortunately, the new BIOS is only available if you email email@example.com for a copy. A general release is expected shortly. Until then, however, it looks like all m15x shipments are on hold. Ouch.
[Via Laptop, thanks Kris J.]