Thankyou very much, Amedeto8 

Run this script in the terminal emulator or adb to fix this issue :

# su
# cd /cache
# mv download download.old
# mkdir -p /sdcard/cache/download
# ln -s /sdcard/cache/download download

reboot.

Note : It works for me. Plz give feedback whether it works for you.

If no problem, then it's alright even if you perform this as it'll increase your cache size. Or if you don't do this, it's also ok.

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Added on September 11, 2011, 8:25 amCyanogenMod 7.1 v.1.3 Update :

Hotfix 1 [10 September 2011]: Fixed volume controls on stock FM app.

Installation instructions (for those who are not familiar) :

1) Download the hotfix and copy it to the root of your sdcard.
http://www.madteam.co/forum/development/%2...alaxy5%27-port/

2) Boot up CWM and select > install zip from sd card.

3) Select the hotfix file.

4) Install and reboot.

5) Done!

Note : Don't perform data wipe.

I think i have doing it wrongly. So im gonna redo everything. Is it necessary? Secondly, I dont really understand about SD card partitioning thing. So I just wanna make sure. How relevant is swap or not to swap for our galaxy 5? Is there any guide links? Im on 4gb SD card. What is your suggested Ext4 partition size?
Wait wait wait. its a "exe" file. Where do i need to install this? Directly into SD card? Any relevant guide links for this as well?
Thanks! 

You're right. Hf3 is actually meant for testing - hf3 test3. And Psyke has deleted the link after the testing. He's
preparing v.1.4 now.

Good to know S97 ramscript's working great for you folks. 

It never happen to me before in all versions of CM.

Try to reflash v1.2. Or if you want update to the latest version - v.1.4 + hotfix1 + gapps.

Most users complained that the sound is too loud in CM!

If you cannot resolve the problem, try flashing back (downgrade) to stock rom and if the problem still persists,
then most probably it's the hardware problem. You have to bring your phone to Samsung Service Centre.

Oop, sorry I got it wrong. I thought your phone doesn't have sound! 

go to your sdcard, > media ---> create a folder and name it "Ringtones"

then copy whatever ringtones you want to this folder.

Do you use task manager/task killer? Sometimes these apps messes with the ringtone.

If not, back up your apps, and do a data wipe. It could be some rogue apps causing the issue.

EDIT : Or did you previously restored your apps using Titanium Backup?

v.1.6 Hotfix 2 released yesterday.

Try flashing to v.1.6 hotfix2 or wipe dalvik-cache with CWM.