Solution to "Loading GUI String Table...FAILED" –
There are two problems. First is the CR/LF characters, as dlanor noted. To solve this one simply download the program called UltraEdit32. Use that to edit your config.dat file. When you open up config.dat, it was ask you if you want to convert the file to DOS, select YES. It will only make it display the file properly but will not convert the file. When you click save, the file will be saved in UNIX format, which is how we want it. Add the two hdd lines at the end. But, before you save it you need to do one more thing...
myPS2 interperts the LF character as the end of the line, so you need to add an extra empty line at the end of the file. Position the cursor at the end of the last line and press enter. Just click save and you're all set.
Also, I've noted that some people have empty lines between their config parameters. One such person is darkarmyofone. (I had to point you out since you were complaining about it so badly) myPS2 thinks that it's at the end of the file if it encounters an empty line. So do not leave empty lines between parameters.
Here is a visual:
US/NTSC V5 - Matrix Infinity v1.75. - Network Adapter - WesternDigital 80GB HDD - CodeBreaker v9.2