Error loading code

I've just upgraded from a G4 to a Mac Pro, and copied all my files 
across using the Mac migration facility. R opens ok but throws up 
these two error messages. I've since reinstalled R but the errors 
remain.

2007-03-27 13:24:43.136 R[739] *** -[NSBundle load]: Error loading 
code /Users/timcole/Library/InputManagers/Smart Crash Reports/Smart 
Crash Reports.bundle/Contents/MacOS/Smart Crash Reports for bundle 
/Users/timcole/Library/InputManagers/Smart Crash Reports/Smart Crash 
Reports.bundle, error code 2 (link edit error code 0, error number 0 
())
2007-03-27 13:24:43.138 R[739] *** -[NSBundle load]: Error loading 
code 
/Library/InputManagers/MagicMenuEnabler/MagicMenuEnabler.bundle/Contents/MacOS/MagicMenuEnabler 
for bundle 
/Library/InputManagers/MagicMenuEnabler/MagicMenuEnabler.bundle, 
error code 2 (link edit error code 0, error number 0 ())

I'd value your thoughts.

Thanks,
Tim Cole
-----
platform       i386-apple-darwin8.8.1
arch           i386
os             darwin8.8.1
system         i386, darwin8.8.1
status
major          2
minor          4.1
year           2006
month          12
day            18
svn rev        40228
language       R
version.string R version 2.4.1 (2006-12-18)