Annoying system beep under Xubuntu 8.10

If you face a problem of getting an annoying system beep at startup / shutdow and any other actions under xubuntu 8.10, the only solution is to blacklist the pcspkr module.

edit the /etc/modprobe.d/blacklist file as root (sudo) and add line,

blacklist pcspkr

Although the changes will apply only after you reboot the machine, you can do

sudo modprobe -r pcspkr

This will remove the pcspkr module and disable the annoying sound

Setting default alarm for events in Lightning (Thunderbird Calendar)

With new Lightning version 0.9, I had started facing a problem where if an event was created or sent to me by someone, which did not have default alarm set, there wont be any alarm going off before the event.

It was probably my sheer laziness that I never really looked for an option for this, If you are facing a same problem here is how to fix it,

go to
Edit -> Preferences -> Lightning -> Alarms and set the "Default alarm setting for events" to "On"

Problems with Thunderbird calendar after Thunderbird upgrade

If you are not able to see the calendar data after upgrading your Thunderbird, specially after upgrading your linux version, the problem can be solved by installing libstdc++5.

I recently upgraded to Xubuntu 8.10 from OpenSUSE 10.3 (late but worth it) and after importing my mail data, I could not see the calendar. The Thunderbird version I used before was and the new version was I tried installing the lower version (in /opt keeping the prebuild version) and it complained to start. It complained about missing after I installed that (sudo apt-get install libstdc++5) all worked fine.

After a bit of googling that the problem with latest version is that it is dependant on libstdc++6 whereas the calendar plugin is dependant on libstdc++5 (I am using Lightning version 0.9 which presumably is the latest)