Web image optimizer for OSX
Imageoptim is a free tool for OSX which optimises JPG, PNG and GIF images for the web. This tool is a lossless image compressor. In my test it reduced the image size by 60% on average.

Imageoptim is a free tool for OSX which optimises JPG, PNG and GIF images for the web. This tool is a lossless image compressor. In my test it reduced the image size by 60% on average.

It took some time but I manged to create a DMG image file for OpenTTD 1.0.5. Just extract the zip, open the DMG file and drag the OpenTTD application to the application folder. You can download the DMG file here.
Open Transport Tycoon is a game which supports Windows and Linux native. Since I use a mac I tried to compile it for OSX, which worked out pretty well. If you have a Mac and want to play OpenTTD you can download the compiled version here. Just unzip the file by double clicking. The only thing missing is the graphics and sound files.
The graphics can be downloaded here. Just extract the zip file into the data directory of my compiled version.
The sound files can be downloaded here. Just extract the zip file into the data directory of my compiled version.
If you run into trouble feel free to leave a comment. This version of OpenTTD has been compiled on Mac OS 10.6.4.
My new Mac Pro had a strange problem. When I turned on the Mac or woke it up from sleep it had no ip anymore. The only way to fix this problem was to switch the cable from ethernet 1 to ethernet 2. Sometimes I had to repeat this step, turn wireless on and off and finally I got an ip. When I restarted the router I did not have to switch the cables, then I got an ip immediately after the restart.
I searched on the internet and found several solutions:
None of these succeeded. I decided to contact Apple within a few days but first I searched again on the Internet. I found this page which described exactly my problem. The interesting part of this thread was about the FritzBox since I do have this router as well. The thread suggested to disable energy saving mode on the ethernet ports of the router. Which turned out to be the solution! Now my network is immediately connected after a reboot or wakeup.
Every time I reboot my Mac Pro the sound output resets itself to internal speakers. This is quite annoying and I had no clue how to fix it. This topic on the Apple forums shows how to fix it.
First delete the audio preference folder:
$ sudo rm -r /Library/Preferences/Audio
Recreate a new one:
$ sudo mkdir /Library/Preferences/Audio
Change the permissions:
$ sudo chown -R _coreaudiod:admin /Library/Preferences/Audio
Go back to the sound preference panel and set the audio to the one you prefer. This will recreate the settings file.
Reboot the system and see if it works.
I have an external monitor attached to my iMac. Sometimes I use it as a secondary display, sometimes it is turned off. When you are already in OSX and turn on your external monitor it will not be detected immediately. You first need to open your display preferences and click on “Detect Displays”. This tweet however, shows that you can use CMD + BrightnessUp (which is in most cases F2 or fn + F2) instead.
According to the Cocoa Packet Analyzer website:
Cocoa Packet Analyzer is a native Mac OS X implementation of a network protocol analyzer and packet sniffer. CPA supports the industry-standard PCAP packet capture format for reading, capturing and writing packet trace files.
Features:
- Basic packet capturing (libPCAP/ tcpdump filter expressions can be used).
- Analyze, display and filter packet trace files.
- Supports PCAP packet capture format.
- Quicklook plugin included – it is basic but at least you can get an overview over packet trace files in finder.
- Intel 64-bit CPU support.
Today I added a new Mac section on http://www.basvandijk.eu/mac/. This section might be helpful for people who just started using a Mac and do not yet know which software can be useful.
Angry IP scanner is a free network scanner which supports Mac OSX, Windows and Linux. It has an intuitive GUI which makes it easy to use. You can download Angry IP scanner here, more screenshots are available here.

If for example Pages crashes telling you and error occurred with the SFWordProcessing plugin. The steps below might be a solution: