Created attachment 71015 [details]
explain

Created attachment 71016 [details]
sample

This glitch is not reproduced on my system. FYI, following is my environment: 
OS: PC-BSD 8.1 (based on FreeBSD 8.1)
OO.o version: OO.o-ja 3.2.0 (OOO320m12 (Build:9283))
IME: Anthy

I add the step. 

5. Select Category to “Number”
5.1 Select Format to "-1,234"
5.2 OK.

All steps.

1. Open New document.
2. Insert new Table.
3. Select all cells.
4. Right click > Number format.
5. Select Category to “Number”
6. Select Format to "-1,234"
7. OK.
8. Japanese IME to turn ON
9. Type some number.
10. Hit "Enter" key to confirm entry.
11. Save and Close document.
12. Reopen document.
13. Enterd number lost.

Yes, this time it's reproducible here. It's very odd...

This issue reproduced on my computer.
After saved the document, all numbers I've inputed became 0.
I think it's very important issue for Japanese users.

/* Environment */
Windows XP Pro SP3
OOo3.2.1 Japanese binary
Google Japanese IME 0.11.382.0

This issue reproduced on my OOo 3.0.0 build 9358 on MacOS X 10.5.8
Japanese Input Method: EGBridge Universal2
in Zenkaku (full-width chars) mode.
No problem when entering hankaku (half-width, ascii) numbers 
via Japanese Input Method.


I feel this is a minor problem because I've never expected that 
numbers in Zenkaku (full-width) characters should be recognized 
as "numbers".

1. Open New document.
2. Insert new Table.
3. Select all cells.
4. Right click > Number format.
5. Select Category to “Number”
6. Select Format to "-1,234"
7. OK.
8. Japanese IME to turn ON
9. Type some number ---- in hankaku "123456".
10. Hit "Enter" key to confirm entry.
11. Save and Close document.
12. Reopen document.
13. Enterd number lost.


I think This is important problem. 
There are a lot of typing the HANKAKU number in the ZENKAKU mode.
And,  next day or month, that notices an important number lost. 

@OS: please have a look.

Reset assigne to the default "issues@openoffice.apache.org".