Form Select/Option Problem

Hummmmmm..........since I acquired my new Mac all is not well!!

All the form select options dropdown backgrounds appear as a dirty grey color with white text on the websites I've built!!!! I'm assuming its got a lot to do with my Mac theme being the dark option, I dont know. Is there a way to get the white background back for the options dropdown, without going back to a white theme for the computer? I've tried a few css solutions but none seem to work, so far.

Edited:

Yes, that seems to be it, setting the computers theme to light brings back the white background behind the options tags. That is just F*****G crazy, what idiot thought that one up,  genius. No wonder I want to give up, I'm losing the will to live with all the dopes around. Yes, by all means affect the architecture, why dont you, but invading the browser itself, no way!!! Now it looks like Im going to have to manually build the select option to get the effect I want.

As an aside note its all going to rat-shite, MAMP doesn't work for me at least on the MI chip, localhost doesnt update to reflect any changes made to files so its unworkable - I switched to Xampp but the file upload script has now stopped working.......hummm. I've been around and set the read/write permissions on all the folders I can think of and looked at the php info where file upload is 'on' Could it be anything to do with a setting the php.init file.......a long shot as file upload doesnt work in MAMP either.

Maybe I'll sell this piece of crap at a loss and go back to my other machine, which at least worked lol - who convinced me to come out of retirement............thats exactly why I retired because just about every minute of every day when web-developing was consumed with sorting out a technical issue of some kind or another!!

Happy days!!