The Options panel gets huge (around 1400x1000), so huge that all four sides are off the screen, no buttons, or title bar can be seen and the categories on the left side can barely be seen. (see attached pic.)

The steps to reproduce:

• enable the Classical Extras plugin
• save the options (Make it So!)
• reopen the Options window
• BANG it's big.

The only way to get back the normal sized Options panel is to disable the Classical Extras plugin (either deleting from the ini file, or luckily opening the Plugins section of the Options and disabling from there).

I tried reinstalling the program from scratch, even starting with a fresh new ini file, nothing helps. Not even setting the options_size parameter made any difference.

I would say the Classical Extras plugin's configuration panel is way too big to fit in my screen.
Maybe the Options panel should limit it's size to the set size and use scrollbars.