Newbee with 'simple' questions...a little help

Bought a 99 BMW 740i with sport package.
It is my first BMW, and after a few days, I am with it.
I, however, have some issues that maybe someon can offer some advice to.
Searches in forums and the web have yeilded no results.

1) Dash display is missing some "dots" so numbers are incomplete.
-WHERE TO REPLACE?

2) Audio System will not adjust the Fader or Bass settings.
-I CAN'T FIND ANY REPLACEMENTS.

3) Any advice for Service places to use or not use the Balt / Wash Area?

Thanks in advance.

well the dash, i'm not really sure, but my friend went out and he repalced the whole thing. but the audio, if u have a tape player, it's right below it...thers a bass and treble buttons and u press and hold it for a while to the side

This is the famous Pixel Fix.

http://bimmer.roadfly.com/bmw/forums/e38/4441701-1.html

Not the same year, but might be similar??? Have a look