OK, I've been trying to build truecrypt 5.0 on x86_64 fedora 8, and it is indeed an adventure. 1st - it simply won't build on a 64 bit platform (have to get rid of some overloaded functions that are ambiguous when "long long" and "long" are actually the same type). 2nd - it wants to build its own copy of the wxWidgets libraries so it can static link them and the readme says "get the wxWidgets source from http://www.wxwidgets.org". Trouble is, there is no "the" source. There is a giant list of different flavor source archives to download on the wxWidgets site :-). Reminds me of trying to get "the" java rpm from the Sun web site. I'd post all this on the truecrypt forums, but the forums are down due to "technical problems" (maybe 10,000 people all trying to report build issues with 64 bit at the same time :-). If I do ever get it to build though, it does look like it uses fuse now so no more building kernel driver modules (which will be an advantage).