Sound volume to Low

Right click the sound volume tray icon, click Sound Preferences, and at the top, "Output Volume" will let you make sound go higher than the normal 0-100 range of the Tray Icon's slider.

even then its low compared to what i had on 9.04

Try this:
1. Right click the sound volume icon, click "Sound Preferences".
2. At the top, there will be a slider that unlike others, allows you to go over "100%". (Kinda defeats the point of "percentage" doesn't it)
3. Drag the slider above 100%, to the end of where it can go. It will snap near 100% on a faint vertical line about 70% of the way of the whole slider.

i did just that and the sound is a litle lowder but not as loud as i can get on 9.04
something is wrong on the volume control
with the slidder all the way to the right i can ear some distortion now

Sound in system or sound in some player? which one?

i was talking about overall system sound
and i notice something sound when system start and plays the startup-music its somewhat loud then in the midle of it goes abrupted low

it is lower then 9.04 and i way too low compared to windows.(on windows i have to ajust the speakers volume)