regarding cache in konqueror embedded webbrowser

hi,
 
 i had downloaded and compiled konqueror embedded web browser(konqueror3-embedded-0.2-20060121.tar.bz2). i had ported that to blackfin BF537 EZKIT board also.everything is fine. but after browsing certain number of pages . the browser crashes saying there is not enough space.i have certain doubts regarding this.
 
 firstly when i browse the web pages say for example google, there is directory being created in "/". can you say me how to clear them ? i mean should we manually clear these or will browser do this automatically ? secondly  i found in konqueror/embedded docs that we can speed up the browsing by specifying the parameter KIO_HTTP_USECACHE,KIO_HTTP_MAXCACHESIZE. i did the following before executing the konqueror:
 
 export KIO_HTTP_USECACHE=1
 
 export KIO_HTTP_MAXCACHESIZE=512.
 
 can anyone say me what  will happen if we specify these ? i mean after buffering  the 512 Kbytes of datas, will it clear automatically if we specify this ?
 
 lastly if want the temporary file to created in a particular folder , how to specify the folder ?Earlier i had posted this query and got response saying that we can specify in the following file:

konq-embed/kdesrc/kio/http/http.cc  line305:

   m_strCacheDir = config()->readPathEntry("CacheDir");
.can anyone say me how ? i mean instead of "CacheDir" should i specify "/home/temporary" or like below:
CacheDir=/home/temporary.

  can anyone clarify these doubts ?
 
 thank in advance,
 saravanan.
 				
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