[TYPO3-dev] ajax problem, cache related

[Christoph Koehler]

Hello all,

I have a ajax / cache problem.
I added some ajax stuff to my page, with the ajax requests being routed  
through typeNum.
Now, when the page updates itself, I get these pretty often:

t3lib_DB::exec_INSERTquery
ERROR: Duplicate entry '22-222419149' for key 1
lastBuiltQuery    INSERT INTO cache_pagesection
(
page_id,
mpvar_hash,
content,
tstamp
) VALUES (
'22',
<snip>

Why is it trying to cache the page? My extension is a user_int apparently,  
but I have had problems with caching before; I just cannot switch it off.

This problem also occurs if I attach ?nocache=1 to the page and/or ajax  
request url.

Christoph