The hard drive "Clicking" problem where the hard drive makes an obnoxious noise every time it parks its head. We're stuck with this incredibly annoying clicking sound until another manufacturer makes a 1.8" hard drive that will fit in the X41T (Seagate, where are you? I love my 2.5" Seagate 7200 rpm notebook drive; it's completely silent even while parking the head, but it won't fit in the X41T).
I do not want to say that this is a pure marketing place. But I read the articles in two web site(Tablet buzz and thinkpad forum) and asked some questions there, they all confirmed me that almost all (actually all ,as I know) X41T have the clicking problem.
So, I thought that there are several possibilities. First, the X41T sold in Taiwan have no clicking problem(I do not believe). Second, Taiwanese are more endurable. Third, this is not the place to discuss "problems".