Well, there are lots of problems with OO 2 Beta with Bangla language. I found
the problems in OO 1.1.4 and when I download the latest beta release, I found
they are not sorted.

There is no Bangla/Bengali present in Language Options. Also no locale for
bn-BD. Officially bn-BD locale was submitted to Unicode (CLDR), which can be
found from http://www.jtcsv.com/cgibin/locale-bugs/?findid=522	If possible,
please include it by the final release.

As mentioned in: http://qa.openoffice.org/issues/show_bug.cgi?id=45049
When I switch keyboard and start typing Bengali it shows garbage boxes, it
cannot detect the installed Bengali fonts automatically. But if we manually
select a Bengali font, it doesn't take the Danda (U+0964) & Double Danda
(U+0965) from that selected font. By default it brings the Danda and Double
danda from Windows's default Devanagari font Mangal. If I remove Mangal from the
system’s font folder, it shows boxes. (Mentioned in
http://qa.openoffice.org/issues/show_bug.cgi?id=45048 )

Like Danda and Double Danda, all these signs  . , < > / ? ' @ ; : ] } { [ + = -
_ # ~ ! " £ $ % ^ & * ( ) `  comes from Latin font. They should come from Latin
font as the works in M$ Office, but the problem is, sometime it becomes garbage,
typing on the fly. Please see http://www.ekushey.org/openoffice/bangla_garbage.png 

I found the dialog boxes are not showing Bangla. I tried to save a Bangla named
file and found this: http://www.ekushey.org/openoffice/save_box.png

If this happens, then we cannot find Bangla after translating the OO interface
into Bangla.