Ruby-debug with SciTE?

Using this combination I get double echoing of every letter I type into
the debugger. Is there a way to prevent this? Is there a preferred
environment for combining a wysiwig editor with the debugger?

Example:

(rdb:1) bb 1111

Set breakpoint 1 at DirScan.rb:11
(rdb:1) cc

Breakpoint 1 at DirScan.rb:11
DirScan.rb:11 px = Pathname.new(pname)
(rdb:1) pp ppnnaammee

“D:/Documents and Settings/wrishel/My Documents”