Description of problem:
When visit the URL    
http://focus.bne.redhat.com/I18N/IndicTC/lang/te_IN/font/IndicFontTestCaseGSUB-Telugu.html
via the konqueror browser,and test the #285 font there were the cursoring error
for that I must knock three times the left /right cursor to make the cursor
move to the left /right with the current font,and when use    
the BackSpace key to delete the word,it could not match the number of the
unicode.More over,we must knock the Delete key three times to delete the word.

And the char is not displayed correctly in the konqueror browser

The Unicode of the word is U+0C37 U+0C4D U+0C1F U+0C4D U+0C30 U+0C40 

Version-Release number of selected component (if applicable):
fonts-telugu-2.3.1-1.el5
konqueror browser in rhel 5.2
pango-1.14.9-3.el5


How reproducible:
Always

Steps to Reproduce:
1.visit the website given above and turn to the te_IN GSUB #285,and just knock 
the Backspace key according to the unicode (knock the Backspace for times the 
same as the number of the unicode of the word) 
2.Knock the Delete key on the word just for once
3.Knock the left/right key on the word just for once
4.just make a comparison between the image and the char in the textbox

Actual results:
1.The cursor can be positioned in the middle of the char when click the
left/right key.
2.When Click the Backspcae key to remove the char,we can remove it via clicking
the Backspace four times,but actually we should click it six times.
3.When click the Delete key to delete the char,we have to delete it via
clicking the Delete key three times.
4.The char could not be displayed the same as the image

Expected results:

All the cursors can work as the requirement given below:
1.Delete:it should delete the entire composed char at a time
2.Backspace:need to several times to remove the char,it depends on each char
unicode
3.cursor(left,right):must not be positioned at the middle of the char anyhow,so
cursor just for one time
4.The char could not be displayed the same as the image

Additional info: