I've just committed some changes to R-devel to make the mouse handling in the R console more consistent with Windows conventions: - insert vs overwrite mode is now indicated by a vertical line/solid block cursor - the mouse can be used to move the cursor (only within the input line) - if part of the input line is highlighted and text is entered, it will replace the highlighted section. It's not fully consistent with other Windows programs: e.g. Ctrl-X still does "copy and paste". I tried to add missing functionality while making minimal changes to existing behaviour, but some changes were unavoidable. Input handling in Rgui is complicated by the support for multi-byte character sets and double-width characters (e.g. Chinese, Japanese), which I can't easily test, so I'd appreciate it if others could take a look and let me know of any bugs. This should show up in Windows builds of 2.6.0dev on CRAN of revision 41380 or later. Duncan Murdoch