I apologize for my ignorance - I'm very new to this - but I have tried everything and cannot get 1.9.2 installed using RVM. I believe I have installed RVM correctly, and when I go to install 1.9.2 I get the following error in my make log when ruby tries to compile:

ld: in /usr/local/lib/libz.1.dylib, file was built for unsupported file format which is   
not the architecture being linked (x86_64) for architecture x86_64
collect2: ld returned 1 exit status
make[1]: *** [../../../.ext/x86_64-darwin10.6.0/digest/md5.bundle] Error 1
make: *** [mkmain.sh] Error 1

Some other information: I was running OS X in 32 bit, and received a similar error - replace the (x86_64) with I believe (i36). I am now running in 64 bit.

*Update*:

I have done everything TinMan has asked me to do, and still no avail - Just want to point out that I can install 1.8.7 just fine. Attempting to install 1.9.1 and 1.9.2 gives me the following error message:

`Installing Ruby from source to: /Users/tl/.rvm/rubies/ruby-1.9.2-p180, this may take a   while depending on your cpu(s)...

ruby-1.9.2-p180 - #fetching 
ruby-1.9.2-p180 - #downloading ruby-1.9.2-p180, this may take a while depending on your    connection...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 8609k  100 8609k    0     0   655k      0  0:00:13  0:00:13 --:--:--  939k
ruby-1.9.2-p180 - #extracting ruby-1.9.2-p180 to /Users/tl/.rvm/src/ruby-1.9.2-p180
ruby-1.9.2-p180 - #extracted to /Users/tl/.rvm/src/ruby-1.9.2-p180
ruby-1.9.2-p180 - #configuring 
ruby-1.9.2-p180 - #compiling 
ERROR: Error running 'make ', please read /Users/tl/.rvm/log/ruby-1.9.2-p180/make.log
ERROR: There has been an error while running make. Halting the installation.`

Additionally, I have upgraded my autoconf, automake, m4, and libtools.

Lastly, my path