Hi Vale
Here are a few other suggestions

--Restart your iBook in Safe Boot mode (this does a file system check, and the folks on the Apple Discussion Forums recommend this before and after each upgrade). Just hold down the shift key after the startup tone http://docs.info.apple.com/article.html?artnum=107393 After a Safe Boot, repair permissions and restart normally.

--in case many uploads are slowing down your connection, set the Preferences->Uploads->Basic->Upload Bandwidth to about 85% of the slider.

--install LW version 4.0--it is scheduled for release tomorrow

Cheers