On the MacBook: No yellow bar
On the iMac: There is a yellow bar.
Charts loaded onto the MacBook are the same as on the iMac.
Directory root is the same for both MacBook and iMac. Users/username/desktop/CM93_May2009
I've no idea how to disable OpenGL on a MacBook and though I have googled the question, I'm not seen any clear instructions that would allow me to do that.......and more importantly get me back to a default condition.
Bit of background: I have a colleague who runs Open CPN himself, and has done for some time. He has tried himself without success saying that "provided the directory is pointing to the chart folder, CPN should have no problem in reading the files contained".
His statement was born out when I then repeated the exercise on the iMac. It genuinely easy to do and caused no issues at all.
The MacBook was rebuilt by myself for the sole reason of using Open CPN and I have a 300Gb HDD with 4Gb of RAM. The only other applications loaded are MS Office. Other than that and the default applications that come with the OS, there is nothing else.
I'll wait a few more days and then if push comes to shove, I'll rebuild
the MacBook and see how I get on. There is the possibility that the hardware
is not up to the job. Having said that though, Open CPN does boot up.