text: when i log on there is an error message-rundll,how can i fix this?   there can be a various number of rundll errors when you logon to your computer.   i looked up the microsoft knowledge database at : http://search.support.microsoft.com/search/?adv=1  and found out some links that could help you locate your exact error.  symptom 1 :  when you start a computer that runs microsoft windows xp professional or windows xp home edition, you may receive the following error message:  rundll error loading irprops.cpl. the specified module could not be found.   solution for your problem: http://support.microsoft.com/kb/834340/en-us  symptom 2:  when you start your computer, you may receive one or more of the following error messages:   rundll32.exe - entry point not found: the procedure entry point thunkconnect32 could not be located in the dynamic link library kernel32.dll  rundll - error in nvqtwk missing entry:nvcpldaemon    solution for your problem: http://support.microsoft.com/kb/330159/en-us    just in case you are able to note down the exact message that comes with the error you can search it on the microsoft knowledge database and you can get a more precise solution for your problem .  i hope this solves your problem.  have a nice day.  :)