Hi exolic,
Welcome to the Community! I notice you are using Mac OSX 10.4. Please be aware that LogMeIn only supports version 10.4.6 and higher, so please make sure you are not using a version of OSX 10.4 lower than that.
Also, please check to see if your computer has the Silverlight plugin installed. You can find it by following these steps:
1. Navigate to your Macintosh HD
2 Navigate to the Library
3. Navigate to the Internet Plug-Ins folder
4. Please locate and remove the SilverLight Plug-In
Some Users have reported that the Silverlight plugin will conflict with the LogMeIn plugin and may cause a browser crash.
If you are still having difficulty, I would suggest you submit an online Support Ticket by visiting the following link so that we may better assist you:
https://secure.logmein.com/US/contactus/
Regards,
Todd Dyer
Team Lead, Customer Support