Hmm, looks like the General FAQ:
"when accessing events of objects e.g. the onclick event of a button i get the following error. ERROR unit not found: stdCtrls"

Mattias

Title: Error asociating events

Entered by: Josean Coret

Steps to reproduce behavior :

Insert a button. Select the button. In the properties window select Event tabs. Click on \"Onclick\" element and rus causes an error : Can\'t find unit controls (or buttons, or extcontrols, any...)

Sorry for my poor English, I Speak Spanish.

Good Word Friends!!

Title: Object Inspector hangs (Win32)

Entered by: Ian Rowe

In Win32 build, I dropped a button on a form (button didn\'t appear properly, just outline), then click on a few properties in object inspector, Lazarus then hung. Got the following in the dos output window - D:\\lazarus\\bin\\win32\\lazarus.exe (pid:1840): GLib-CRITICAL **: file gmain.c: line 1465 (g_source_remove): assertion `tag > 0\' failed