[BioC] problems with tcltk library

[Jeff Gentry]

> I just downloaded and installed the ActiveTcl 8.3.4.2.  But, it's still not working.  When I was trying to include library(tcltk), I got the same error message.
> > library(tcltk)
> Error in firstlib(which.lib.loc, package) : 
>         TCL_LIBRARY is not set
> Error in library(tcltk) : .First.lib failed

Just a guess, but something that might help - it looks like it wants an
environment variable TCL_LIBRARY.  I have no idea how to set environment
variables in Windows, but you might want to try setting one named
TCL_LIBRARY and pointing it to where your TCL is installed.

-J