[TxMt] SVN bundle problems

[D. Vinay Dixit]

hi - I am getting strange behavior when I try to commit or do a diff  
with the svn bundle; it had been working fine before but now when I  
commit I get no action and when I do a diff I get the output below.

can anyone spare me a clue?

cheers!

sh: : command not found
/Users/dvinay/Library/Application Support/TextMate/Support/lib/ui.rb: 
192:in `initialize': No such dialog ()} for command: '' -a -c -p \<\? 
xml\ version\=\"1.0\"\ encoding\=\"UTF-8\"\?\>'
'\<\!DOCTYPE\ plist\ PUBLIC\ \"-//Apple//DTD\ PLIST\ 1.0//EN\"\ \"http 
\://www.apple.com/DTDs/PropertyList-1.0.dtd\"\>'
'\<plist\ version\=\"1.0\"\>'
'\<dict\>'
'\	\<key\>details\</key\>'
'\	\<string\>\</string\>'
'\	\<key\>isIndeterminate\</key\>'
'\	\<true/\>'
'\	\<key\>progressAnimate\</key\>'
'\	\<true/\>'
'\	\<key\>summary\</key\>'
'\	\<string\>Accessing\ Subversion\ Repository…\</string\>'
'\	\<key\>title\</key\>'
'\	\<string\>Diff\ With\ Newest\</string\>'
'\</dict\>'
'\</plist\>'
'  ProgressDialog.nib	from /Users/dvinay/Library/Application Support/ 
TextMate/Support/lib/ui.rb:15:in `new'
	from /Users/dvinay/Library/Application Support/TextMate/Support/lib/ 
ui.rb:15:in `dialog'
	from /Users/dvinay/Library/Application Support/TextMate/Support/lib/ 
progress.rb:42:in `call_with_progress'
	from /Applications/TextMate.app/Contents/SharedSupport/Bundles/ 
Subversion.tmbundle/Support/svn_diff.rb:39:in  
`diff_working_copy_with_revision'
	from /Applications/TextMate.app/Contents/SharedSupport/Bundles/ 
Subversion.tmbundle/Support/svn_diff.rb:21:in `diff_active_file'
	from -:5