Contig Drawing program?

[Alastair R W Kerr]

Hi, 
I'm looking for a program (preferably for a dec alpha, but a mac or pc 
versions would suffice) which would give a graphical represenation of 
features given their start and stop positions within a contig.  (I've tried
basic plotting programs, but cannot get sufficiant clarity).

I'd appreciate any information that anyone could provide.

Thanks 
 - Alastair