what OS are you guys using?

["Clancy, Shane W." <SCLANCY logicon com>]

I am constantly running into problems trying to build gnome/gtk apps because
the operating systems I have tried are using incredibly old libraries.  I
have tried developing on Mandrake 8.1 and Red Hat 7.2 and neither has had
libraries that could be described as current.  Could someone tell me what
operating system I should be using?

Thank you,
Shane