ri-1.0
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1. Block Operation

 After a block is cut, the cursor isn't updated to a proper position. So executing the "Cut" command a few times in succession (which you'll never do in normal usage!) _may_ lead to a segmentation fault. This requires just some error checking code.

2. Speed

The editor becomes noticeably slow when working with files having more than 1000 lines. 

3. Compatibility

In Red Hat 8.0 with the default character settings, the windows are displayed without borders. To correct this, comment the line LANG="xxx" in /etc/sysconfig/i18n (put a "#" at the beginning of the line). Then login again and start ri.
