the fault is to do with the speech server.

If you have as an example, settings enabled to announce background app 
messages, etc, the speech server trips your reading text. this can sometimes 
hang. the only way to handle it as you say is to quit and restart voiceover.

this is a problem which spans back from the early days of voiceover. speech 
manager servers for screen readers like jaws, window eyes and voiceover in 
particular are known to have hickups.

to be expected.

lew

Free Macs For The  Blind

On 28 Nov 2011, at 13:50, Eugenia Firth wrote:

> Hi Guys.
> This happens to me occasionally in TextEdit, and I hadn't noticed it until 
> the last update. I think I should let Apple know about this, just in case 
> they don't know. I think it has to do with VoiceOver somehow because if I 
> turn off VO and wait a few seconds and then turn it back on the problem is 
> fixed. I don't know, since I can't see the screen, if this has anything to do 
> with saving files.
> 
> Regards,
> Gigi
> 
> On Nov 18, 2011, at 5:01 PM, Chad King wrote:
> 
>> Hi William.
>> I have seen this in a couple of the apps i use. How often does this happen?
>> For me, it doesn't happen often, but when it does, I have to press comand f5 
>> 3 times to get VO to come back.
>> Sent from my MBP
>> 
>> On Nov 18, 2011, at 4:18 PM, William Windels wrote:
>> 
>>> Hello ,
>>> Lion is doing frustrating sometimes:
>>> I am loosing the speech without reason and I I can restart vo, The speech 
>>> is back.
>>> But, while the speech is gone, the speech is still present when e.g. turn 
>>> trackpad on/of, modify the brightness ...
>>> 
>>> any ideas?
>>> kind regards,
>>> William 
>>> 
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